Sariska Tiger Reserve Boundary Rationalisation
Subject: Environment and Ecology
Topic: Wildlife Conservation

The Rajasthan government's proposal to rationalize the boundaries of the Sariska Tiger Reserve's Critical Tiger Habitat (CTH) is under scrutiny as it might reopen over 50 marble and dolomite mines that were closed due to a Supreme Court ruling due to their proximity to the habitat. Here are the key points from the development:

  • Background: In May 2023, the Supreme Court ordered the closure of 57 active marble and dolomite mines around Sariska Tiger Reserve based on environmental concerns. Approximately 43 of the mines were already non-operational due to permit issues.

  • New Proposal: The Rajasthan government has proposed to alter the CTH boundaries, which include the retreat of the habitat by 48.39 sq km, categorizing this area as "peripheral degraded areas affected by human activities." In compensation, 90.91 sq km of quality tiger habitat will be added to the CTH.

  • Rationale Behind Changes: The proposal aims to improve relations between the local communities and the tiger reserve management. However, local forest officials raise concerns that these changes might impede the internal connectivity necessary for tiger movement within the reserve, as the excluded areas are vital for wildlife corridor dynamics.

  • Political Context: The proposal's progress is influenced by the political representation of local ministers from Alwar, pushing the state wildlife board to review the proposal ahead of a national committee meeting scheduled for June 26, 2024.

  • Economic Impact: Mine owners in the region report annual earnings from mining activities around Tehla to be between Rs 700-800 crore with Rs 500-600 crore in profits. Active operations allowed the movement of at least 1,000 trucks daily with dolomite valued for its cheaper extraction costs.

  • Allegations of Corruption: There are allegations from mine owners that the boundary changes are being manipulated for personal gains, with some claiming they are being pressured to pay bribes for the reopening of mines.

  • Court Oversight: The Supreme Court, recognizing ongoing issues related to mining and wildlife balance, requested a report from its Central Empowered Committee (CEC) in March 2024, seeking comprehensive evaluations including boundary delineations. The CEC noted illegal mining activities correlated with poor demarcation.

  • Decisions Awaiting Final Judgment: The Supreme Court has directed Rajasthan to complete the boundary rationalization process within a year, pending final approval.

  • Community and Conservation Dispute: The proposal is met with mixed feelings as it proposes economic relief to mine owners but raises questions regarding long-term conservation strategies and the impact on the tiger population.

This ongoing situation illustrates the delicate balance between development, environmental protection, and community interests while emphasizing the role of institutional frameworks such as the Supreme Court and state wildlife boards in mediating these interests.

Important Sentences:

  • Rajasthan's proposal to rationalize CTH boundaries could allow over 50 closed marble and dolomite mines to reopen.
  • The proposed boundary adjustments involve retreating the CTH by 48.39 sq km and adding 90.91 sq km of quality tiger habitat elsewhere.
  • Local forest officers express concerns regarding the detrimental effects on tiger movement and internal connectivity.
  • Economic reports estimate significant profitability from mine operations, averaging Rs 700-800 crore annually.
  • Allegations surfaced regarding potential corruption linked to the boundary rationalization process.
  • The Supreme Court has mandated the completion of the boundary rationalization within one year, subject to its approval.
Key Terms, Keywords and Fact Used in the Article:
  • Sariska Tiger Reserve - Tiger habitat area management
  • Supreme Court - Legal authority in disputes
  • Rajasthan government - Policy proposer
  • Critical Tiger Habitat - Protected area designation
  • Standing Committee of the National Board of Wildlife - Wildlife regulation authority
  • Central Empowered Committee - Advisory body for Supreme Court
  • Tehla tehsil - Area with active mines
  • Dolomite - Mining resource
  • Marble - Mining resource
  • Alwar - Geographical location
  • Sariska Tiger Reserve Boundary Rationalisation
    Sariska Tiger Reserve Boundary Rationalisation
    Subject: Environment and Ecology
    Topic: Wildlife Conservation

    The Rajasthan government's proposal to rationalize the boundaries of the Sariska Tiger Reserve's Critical Tiger Habitat (CTH) is under scrutiny as it might reopen over 50 marble and dolomite mines that were closed due to a Supreme Court ruling due to their proximity to the habitat. Here are the key points from the development:

    • Background: In May 2023, the Supreme Court ordered the closure of 57 active marble and dolomite mines around Sariska Tiger Reserve based on environmental concerns. Approximately 43 of the mines were already non-operational due to permit issues.

    • New Proposal: The Rajasthan government has proposed to alter the CTH boundaries, which include the retreat of the habitat by 48.39 sq km, categorizing this area as "peripheral degraded areas affected by human activities." In compensation, 90.91 sq km of quality tiger habitat will be added to the CTH.

    • Rationale Behind Changes: The proposal aims to improve relations between the local communities and the tiger reserve management. However, local forest officials raise concerns that these changes might impede the internal connectivity necessary for tiger movement within the reserve, as the excluded areas are vital for wildlife corridor dynamics.

    • Political Context: The proposal's progress is influenced by the political representation of local ministers from Alwar, pushing the state wildlife board to review the proposal ahead of a national committee meeting scheduled for June 26, 2024.

    • Economic Impact: Mine owners in the region report annual earnings from mining activities around Tehla to be between Rs 700-800 crore with Rs 500-600 crore in profits. Active operations allowed the movement of at least 1,000 trucks daily with dolomite valued for its cheaper extraction costs.

    • Allegations of Corruption: There are allegations from mine owners that the boundary changes are being manipulated for personal gains, with some claiming they are being pressured to pay bribes for the reopening of mines.

    • Court Oversight: The Supreme Court, recognizing ongoing issues related to mining and wildlife balance, requested a report from its Central Empowered Committee (CEC) in March 2024, seeking comprehensive evaluations including boundary delineations. The CEC noted illegal mining activities correlated with poor demarcation.

    • Decisions Awaiting Final Judgment: The Supreme Court has directed Rajasthan to complete the boundary rationalization process within a year, pending final approval.

    • Community and Conservation Dispute: The proposal is met with mixed feelings as it proposes economic relief to mine owners but raises questions regarding long-term conservation strategies and the impact on the tiger population.

    This ongoing situation illustrates the delicate balance between development, environmental protection, and community interests while emphasizing the role of institutional frameworks such as the Supreme Court and state wildlife boards in mediating these interests.

    Important Sentences:

    • Rajasthan's proposal to rationalize CTH boundaries could allow over 50 closed marble and dolomite mines to reopen.
    • The proposed boundary adjustments involve retreating the CTH by 48.39 sq km and adding 90.91 sq km of quality tiger habitat elsewhere.
    • Local forest officers express concerns regarding the detrimental effects on tiger movement and internal connectivity.
    • Economic reports estimate significant profitability from mine operations, averaging Rs 700-800 crore annually.
    • Allegations surfaced regarding potential corruption linked to the boundary rationalization process.
    • The Supreme Court has mandated the completion of the boundary rationalization within one year, subject to its approval.
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    Microplastics in Beverages from Caps

    Summary of the News Article on Microplastics in Beverages Packaging

    The All India Glass Manufacturers’ Federation (AIGMF) has clarified findings related to microplastics in beverages packaged in glass bottles, attributing the contamination to the paint on metal caps rather than the glass itself. This response comes in light of a study conducted by the French agency ANSES, which found higher levels of microplastics in beverages stored in glass bottles compared to those in plastic bottles, cartons, or cans.

    Key Points:

    • Study by ANSES: The French agency ANSES found microplastics present in all types of beverages, indicating that glass bottles exhibited a greater concentration of microplastics than other packaging materials. This study included various beverages such as water, soda, iced tea, wine, and beer.

    • Origin of Microplastics: The AIGMF emphasized that the study clearly links the presence of microplastics in glass-packaged beverages to the metal caps and closures rather than the glass itself. Specifically, the paint on these caps was identified as the source of microplastic particles.

    • Clarification from AIGMF: In a statement, AIGMF President Rajesh Khosla reiterated the safety and reliability of glass as a packaging material, citing its historical use since ancient times. Secretary Vinit Kapur highlighted differences between glass and plastic, noting that glass is composed of silica sand and recycled glass and is manufactured under high-temperature conditions that prevent plastic formation.

    • External Components: Microplastic contamination in beverages was attributed to external factors, specifically the presence of painted metal surfaces, plastic liners, and sealing compounds used in bottle closures.

    • Safeguards and Recycling: AIGMF took this opportunity to reinforce the non-toxic, chemically inert qualities of glass, asserting that it is completely recyclable and does not release harmful additives into the contained contents. The European Container Glass Federation (FEVE) echoed these sentiments, further confirming that glass does not chemically react with beverages.

    Overall, the statements from AIGMF and related organizations address concerns raised by the ANSES study, reinforcing glass packaging's safety and promoting an understanding of how microplastics can infiltrate products through external components.

    Important Sentences:

    • AIGMF attributes microplastics in beverages to the color used on metal caps rather than the glass itself.
    • The ANSES study indicated that beverages in glass bottles contained more microplastics than those in alternative packaging.
    • The presence of microplastics is linked to the paint from metal caps on glass bottles.
    • Glass is made from silica sand and recycled glass, produced without involving plastic formation.
    • External components such as painted metal surfaces contribute to microplastic contamination, not the glass packaging.
    • AIGMF asserts that glass is non-toxic, chemically inert, and fully recyclable.

    Environment and Ecology

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    Heavy Rains and Floods in Himachal

    On June 25, 2025, severe weather events in Himachal Pradesh, including cloudbursts, flash floods, and heavy rainfall, resulted in significant casualties and damage across various districts, notably Kangra and Kullu.

    Key Events and Details:

    • Casualties and Missing Persons:

      • Two bodies were recovered from the Manuni Khad in Kangra district.
      • Approximately 15-20 workers at a labor colony near the Indira Priyadarshini Hydroelectric project site were feared swept away due to sudden surges in water levels.
      • In Kullu district, three individuals went missing due to flash floods caused by cloudbursts in areas like Jeeva Nallah and Rehla Bihal.
    • Search and Rescue Operations:

      • Search efforts are being undertaken by the State Disaster Response Force (SDRF), local administration, and revenue department officials amidst adverse weather conditions.
      • Dharamsala MLA Sudhir Sharma confirmed the disappearance of about 20 workers, and local officials indicated that some workers had been located safely.
    • Damage Assessment:

      • Flash floods in Kullu district led to significant destruction, with numerous houses, shops, roads, and small bridges being damaged.
      • The Manali-Chandigarh National Highway sustained partial damage due to flooding from the Beas River, although traffic continued.
    • Weather Conditions:

      • Continuous heavy rains were recorded, with significant precipitation in multiple locations:
        • Palampur: 145.5 mm
        • Jogindernagar: 113 mm
        • Nahan: 99.8 mm
        • Other affected areas included Baijnath, Poanta Sahib, and Dharamsala.
      • Gusty winds reached speeds of up to 56 kmph, creating additional challenges.
    • Ongoing Alerts:

      • The Meteorological Department issued flash flood warnings for five districts—Chamba, Kangra, Mandi, Shimla, and Sirmaur—through June 26, 2025.
      • An orange alert was placed for heavy rain expected across multiple districts until June 29, underscoring the potential for further flooding and landslides.
    • Impact on Infrastructure:

      • The floods particularly affected transportation routes, with landslides reported in Lahaul-Spiti and blocked roads impacting connectivity.
      • Local lawmakers urged citizens to avoid rivers and drains to ensure safety.

    Summary Points:

    • On June 25, 2025, flash floods in Himachal Pradesh led to two confirmed deaths and about 20 missing individuals in Kangra.
    • Heavy rainfall caused widespread damage in Kullu, impacting houses, roads, and infrastructure.
    • Search and rescue operations are ongoing by multiple emergency services.
    • Significant rainfall totals were recorded in various regions, with warnings issued for continued adverse weather.
    • An orange alert for heavy rain was declared for several districts, indicating heightened risk of flooding.

    This situation highlights the vulnerability of regions in Himachal Pradesh to natural disasters exacerbated by extreme weather patterns, necessitating effective emergency response mechanisms and infrastructure resilience planning.

    Environment and Ecology

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    Impact of Climate on Disease Incidence

    In a presentation at the Congress of the Royal Sanitary Institute in Brighton, London, Sir Leonard Rogers discussed the correlation between climate and disease incidence in India, particularly in light of rising unvaccinated children rates in Great Britain. His analysis highlights the importance of climatic variables and their effects on health outcomes over several decades.

    Key Points from the Presentation:

    • Context: Sir Leonard Rogers's paper was delivered in June 2025 during a significant gathering focused on public health concerns.

    • Climatic Conditions in India: Rogers pointed out the distinct seasons in India—dry cold, dry hot, and hot moist—with significant rainfall variations across regions, making it a suitable subject for studying climate-related disease patterns.

    • Research Findings:

      • Rogers established a strong connection between high rainfall and increased leprosy rates across India.
      • He also noted a correlation between humid monsoon conditions and higher incidence of certain orthotic conditions, demonstrated through illustrative maps.
      • Additionally, he examined the relationship between cold season phenomena, including low minimum temperatures, low humidity, and high diurnal temperature variations, particularly in Northern India. These factors appear to influence overall disease prevalence.
    • Public Health Implications: The findings reiterate the need for comprehensive public health strategies that take into account climate variables, especially in regions with diverse climatic conditions like India.

    This discourse sheds light on the intersection of environmental conditions and public health, emphasizing the significance of vaccination programs and health monitoring in the context of changing climatic patterns both in India and globally.

    Environment and Ecology

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    Impact of Climate Change on Urban Biodiversity

    Summary of Research on Urban Heat and Bird Biodiversity in Bengaluru

    A recent study led by researchers from the Indian Institute of Human Settlements (IIHS) in Bengaluru reveals the significant impact of urban heat and declining green cover on bird biodiversity in Bengaluru, a rapidly urbanizing city. The study was published in the journal Ecological Applications and investigated the relationship between urbanization, heat stress, and avian diversity.

    Key Findings of the Study:

    • Impact of Heat and Urbanization: The study highlights that climate change and reduced green cover are profoundly affecting the lives of millions in tropical countries, especially in urban areas. Record temperatures in Indian cities emphasize this challenge.

    • Focus on Bengaluru: Bengaluru, home to more than 350 bird species across its diverse habitats, serves as a case study. The researchers utilized bird records from eBird and satellite data to assess how heat correlates with green cover and bird species distribution.

    • Heat Islands: Findings indicate that areas classified as heat islands exhibited lower avian diversity. These heat islands, characterized by significantly higher temperatures, pose threats to birds, where biodiversity is concentrated in cooler zones.

    • Biodiversity Trends: Notably, birds in open habitats (grasslands, savannahs) and those reliant on human activities fared better in areas with reduced tree cover. This contrasts with previous studies from places like Dehradun, where green cover was strongly linked to biodiversity.

    Ecological and Urban Planning Insights:

    • Importance of Native Ecosystems: The study underscores that planting trees alone may not suffice for protecting urban biodiversity. It advocates for a nuanced approach to ecological restoration that considers Bengaluru's historical land use, which included open habitats and wetlands alongside forested areas.

    • Risks of Non-Native Species: Approximately 77% of Bengaluru's tree cover consists of non-native species, which can harm local biodiversity and human health. The planting of invasive tree species like Jacaranda is cautioned against due to their detrimental impacts.

    • Diverse Habitat Needs: It emphasizes the necessity for a variety of native plants, including grasses, herbs, shrubs, and trees, as part of urban greening efforts. Focusing solely on afforestation may lead to ineffective conservation strategies.

    Recommendations for Urban Biodiversity Conservation:

    • Integrative Planning: Urban development in cities like Bengaluru should incorporate biodiversity goals, factoring in diverse land uses and historical land cover patterns.

    • Conservation Strategies: Effective reclamation of degraded lands like wetlands and grasslands must be prioritized over simple afforestation efforts.

    • Social Equity in Urban Planning: Ecological and social inequities are deeply connected, with marginalized communities experiencing the severest impacts of heat and deforestation. Urban planning should address these disparities.

    • Access to Green Spaces: The study advocates for improved access to green areas, urging cities to ensure public access to parks and natural spaces, which are increasingly restricted.

    Conclusion:

    The findings from this research highlight the complex interplay between climate change, urbanization, and biodiversity. They invite a reconsideration of urban planning and ecological restoration strategies to foster sustainable urban ecosystems while mitigating the adverse impacts of rising temperatures.

    Important Points:

    • Climate change and heat stress are impacting avian biodiversity.
    • Bengaluru hosts over 350 bird species yet faces increasing temperatures.
    • Heat islands correlate with reduced bird diversity.
    • The role of tree cover in biodiversity varies among different species.
    • Historical land use must inform urban ecological restoration processes.
    • A significant fraction of Bengaluru’s tree cover comprises non-native species.
    • Urban planning should address ecological and social inequities.
    • A multifaceted approach is needed to reclaim habitats and enhance urban biodiversity.

    Environment and Ecology

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    Impact of Jaws on Shark Perception

    The article discusses the enduring impact of Steven Spielberg's 1975 film "Jaws" on public perception of sharks, emphasizing the influence on shark populations and the misconceptions surrounding these marine creatures.

    Key Points:

    • Cinematic Influence: "Jaws," released on June 20, 1975, has dramatically shaped public fears about sharks by portraying them as man-eating monsters. Its tagline, “Don’t go in the water,” remains deeply ingrained in popular culture.

    • Ecological Misrepresentation: The film depicts sharks as deliberate human predators, leading to unfounded paranoia regarding shark attacks. Experts argue that this portrayal is inaccurate, stressing that sharks do not evolve to hunt humans and most attacks are cases of mistaken identity.

    • Statistics: Approximately 63 shark bites are reported globally each year, resulting in five to six fatalities. Comparatively, more people are bitten by other humans each year than by sharks.

    • Population Decline: Shark populations were already declining before the release of "Jaws," primarily due to commercial overfishing, which became prevalent in the mid-1950s. Sharks are targeted for meat and products such as shark fin soup, particularly in East Asia.

    • Current Threats: Climate change, pollution, and habitat destruction also significantly contribute to the decline of shark populations. A 2024 study published in Science indicated that approximately 100 million sharks die annually, with a 71% global decline in oceanic sharks and rays since 1970, as noted in a 2021 study in Nature.

    • Conservation Status: Nearly one-third of shark species are currently threatened with extinction due to these various pressures, as per a 2021 analysis published in Current Biology.

    • Ecological Role of Sharks: Sharks are apex predators essential for marine ecosystem balance. They regulate populations of herbivorous fish, helping maintain ocean vegetation like seagrass and kelp forests, which play a critical role in carbon sequestration.

    • Impact on Marine Ecosystems: Sharks help prevent monopolization of resources in marine habitats by creating a "landscape of fear," influencing the movement and behavior of prey species and promoting biodiversity.

    • Acknowledgment of Impact: Both Spielberg and Peter Benchley later acknowledged the negative consequences their film had on shark conservation. Spielberg expressed regret for the decline in shark populations attributed to the fear generated by "Jaws."

    This reflection on the effects of "Jaws" illustrates a broader conversation about how media representations can shape ecological perceptions and behaviors, highlighting the urgent need to focus on shark conservation efforts.

    Summary:

    • Film "Jaws" (1975) shaped public fears of sharks as man-eaters.
    • Shark attacks: ~63 bites/year; fatalities: 5-6.
    • Population decline: Overfishing and demand for shark products.
    • Current threats: Climate change, pollution, habitat loss.
    • Population: ~100 million sharks die annually; 71% decline in shark and ray species since 1970.
    • Ecological Impact: Sharks maintain marine ecosystem balance and biodiversity.
    • Conservation Needs: Urgent to protect sharks, which are currently under threat of extinction.
    • Regret from creators: Spielberg and Benchley acknowledged the film's role in stoking fear and contributing to shark population declines.

    Environment and Ecology

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    Landslide Near Medellín Causes Casualties

    On June 24, 2025, a significant landslide near the city of Medellin, Colombia, resulted in at least 10 fatalities and eight individuals injured. The landslide occurred in the municipality of Bello, an area reportedly prone to such disasters due to its geographical and environmental conditions. The event was precipitated by intense rainfall leading to flooding in a ravine, as confirmed by local government officials.

    Key aspects of the incident include:

    • Location and Impact: The landslide took place in Bello, a municipality adjacent to Medellin, which is Colombia's second-largest city. The region is characterized by mountainous terrain that is susceptible to landslides during rainy seasons.

    • Casualties: At least 10 people have been confirmed dead, and eight others sustained injuries. Additionally, local authorities reported that around 15 individuals are still unaccounted for, raising concerns about potential additional casualties.

    • Local Government Response: Andrés Julián Rendón, the Governor of Antioquia, indicated that warnings had been issued to local residents regarding the risks of landslides in the area. The government advised evacuation in light of the heightened vulnerability posed by the ongoing heavy rains.

    • Visual Evidence: Local media shared images demonstrating the extent of the destruction, including houses engulfed by mud and flooding along the streets. The disaster management department of Medellin released visual documentation showing a vehicle and road covered in mud after the landslide.

    • Historical Context: Antioquia department, where Medellin is located, frequently experiences landslides, particularly during the rainy season, indicative of the region’s ongoing struggle with natural disaster risks. Just a month prior, another landslide in the suburb of Sabaneta claimed the lives of at least five individuals.

    • Continued Risk: The dangers associated with heavy rainfall and potential landslides remain an ongoing concern for the government and communities in the affected zones.

    In summary, the landslide in Bello exemplifies the environmental challenges faced by mountainous regions in Colombia, particularly during inclement weather, underscoring the necessity for improved disaster preparedness and response strategies.

    Bullet Points:

    • A landslide near Medellin, Colombia, on June 24, 2025, resulted in 10 deaths and eight injuries.
    • The incident occurred in Bello, a municipality prone to landslides during rainy seasons.
    • Around 15 individuals are still reported missing as rescue operations continue.
    • Governor Andrés Julián Rendón confirmed local warnings for evacuation due to the area's vulnerability.
    • Destructive imagery shows extensive damage, with houses buried and streets flooded.
    • The Antioquia region frequently faces landslides, with a prior incident in Sabaneta claiming five lives last month.
    • The ongoing heavy rains increase the risks associated with natural disasters in the region.

    Environment and Ecology

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    Chennai Water Security Plan Approved

    Summary of the Water Security Plan for Chennai and the CMA

    The Tamil Nadu State government has initiated a comprehensive Water Security Plan aimed at addressing water scarcity and enhancing flood resilience in the Chennai Metropolitan Area (CMA) through the Chennai City Partnership Programme. This initiative is in direct response to the challenges posed by climate change, including recurrent floods and droughts.

    Key Objectives and Features of the Water Security Plan:

    • Government Order Issued: A recent Government Order (G.O.) mandates the Water Resources Department (WRD) to implement this Water Security Plan which encompasses the execution of 704 recommended works designed to conserve floodwater and to establish a decentralized water supply system.

    • Gap in Water Supply and Demand: It has been recognized that there is a significant gap between water supply and demand in Chennai. As per estimates from the Chennai Metropolitan Water Supply and Sewerage Board (CMWSSB), the current supply stands at 1,040 million liters per day (mld), against a demand of 1,720 mld as of 2020.

    • Projected Water Demand: The water demand in Chennai is expected to surge to 38.73 thousand million cubic feet (tmcft) by the year 2050. In contrast, the Water Security Plan is designed to create additional storage and manage a total of 39.74 tmcft of water by that year.

    • Strategic Approach: The plan follows a three-pronged strategy aimed at:

      1. Conserving floodwater runoff at the source, focusing on rivers and catchment areas.
      2. Undertaking climate-adaptive rejuvenation of water bodies to enhance storage capacities.
      3. Regulating flash floods and conducting river training along with flood protection measures.

    Implementation Framework:

    • The WRD is poised to undertake various interventions including the development of new reservoirs, restoration of existing supply channels, and the construction of check dams and transfer channels, with a project timeline extending from five to over ten years for certain long-term projects.

    • Specific projects outlined include upgrading 350 tanks into reservoirs, particularly in areas like Thenneri, Sriperumbudur, Manimangalam, and Pillaipakkam, and constructing three barrages across the Palar River intended to function as riverine reservoirs.

    • There will also be the establishment of multiple groundwater recharge structures along the coastal belt to bolster groundwater supply.

    Funding and Collaboration:

    • Funding for these initiatives will be managed by the state government, with expected reimbursements from international funding agencies such as the World Bank post-project completion.

    • The involvement of hydrologists and consultants in the planning process emphasizes the critical nature of addressing existing water body capacities, groundwater recharge, and improving climate resilience measures.

    Conclusion:

    The Water Security Plan represents a crucial step in fortifying Chennai's water infrastructure against climate adversities while fostering sustainable management of water resources within the metropolitan area. The comprehensive approach aims not only to address immediate water supply challenges but also to build long-term resilience against flooding and drought conditions, enhancing the overall water security framework of the region.

    Important Points:

    • Initiated by the Tamil Nadu government under the Chennai City Partnership Programme.
    • Addresses water scarcity and climate change impacts.
    • Current water supply: 1,040 mld; Demand: 1,720 mld (2020).
    • Projected demand of 38.73 tmcft by 2050, with a planned capacity of 39.74 tmcft.
    • Three strategies include conservation, rejuvenation, and flood regulation.
    • Timeline for implementation: 5 to 10 years (some over 10 years).
    • Collaboration with international funding agencies, including the World Bank.

    Environment and Ecology

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    Jaws' Impact on Shark Populations

    Summary of the Article on Sharks and the Influence of "Jaws"

    The article explores the cultural and ecological impact of the film "Jaws," released on June 20, 1975, on public perceptions of sharks, particularly great whites. The movie’s portrayal has significantly influenced society's view of sharks as dangerous predators and has led to a decline in shark populations globally.

    Key Points:

    • Cultural Impact of "Jaws":

      • The film introduced enduring imagery of sharks as bloodthirsty creatures, deeply influencing public perception.
      • The tagline "Don't go in the water" contributed to widespread fear of sharks.
    • Hunting Increase Post-Release:

      • Following the film, there was a marked increase in shark hunting and fishing tournaments, especially along the east coast of the U.S.
      • Jennifer Martin, an environmental historian, noted the film misrepresented sharks, portraying them as "killing machines" rather than vital ecological players.
    • Misconceptions about Shark Behavior:

      • The narrative of sharks purposely attacking humans is contradicted by experts, such as David Shiffman, who states that sharks do not evolve to target humans.
      • Most shark attacks are deemed cases of mistaken identity, with sharks sometimes biting humans and moving on.
    • Statistics on Shark Attacks:

      • Annually, about 63 people worldwide are bitten by sharks, resulting in approximately five to six deaths.
      • More people are injured by other humans in urban areas like New York City each year than by sharks globally.
    • Shark Population Threats:

      • The decline of shark populations started before "Jaws"; white shark numbers began to diminish in the mid-1950s mainly due to commercial overfishing for products such as shark fin soup.
      • Contributing factors include climate change, pollution, and habitat destruction.
    • Current Findings on Shark Mortality:

      • A 2024 study published in "Science" highlighted that about 100 million sharks die annually, a figure that has increased in the last decade.
      • A 2021 study in "Nature" reported a 71% decline in global oceanic sharks and rays since 1970, with nearly a third of shark species currently threatened with extinction according to a 2021 analysis in "Current Biology."
    • Ecological Importance of Sharks:

      • Sharks play a crucial role in marine ecosystems as apex predators, maintaining the balance of marine life.
      • Their predation helps keep populations of plant-eating fish in check, which in turn prevents the overconsumption of ocean vegetation that sequesters carbon.
      • Sharks also aid in mixing nutrient-rich waters, benefiting surface-dwelling marine life like phytoplankton.
    • Conservation Efforts:

      • The decline of sharks raises environmental concerns due to their essential roles in maintaining marine biodiversity and carbon cycling.
      • Recent years have seen increased efforts towards shark conservation, with acknowledgment from figures like Steven Spielberg reflecting on the film's negative impact. Spielberg expressed regret over the decimation of shark populations attributed to the film.

    This analysis underscores the need for balanced views regarding sharks, focusing on their ecological significance rather than sensationalist portrayals that foster unwarranted fear.

    Important Sentences:

    • "Jaws," released on June 20, 1975, shaped public perception of sharks negatively, describing them as bloodthirsty predators.
    • The movie led to increased hunting of sharks and popularized the notion of "rogue sharks."
    • Shark attacks are rare, with about 63 incidents and five or six deaths annually globally.
    • Shark populations have been declining for decades, exacerbated by factors such as overfishing and habitat destruction.
    • A 2024 study indicated that annual shark mortality now stands at approximately 100 million.
    • Sharks are vital to marine ecosystems, helping maintain biodiversity and carbon cycling.

    Environment and Ecology

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    Boundary Changes at Sariska Tiger Reserve

    The article discusses a significant proposal by the Rajasthan government to rationalize the boundaries of the Sariska Tiger Reserve's Critical Tiger Habitat (CTH), potentially impacting over 50 marble and dolomite mines that were previously closed due to a Supreme Court ruling. This proposal seeks to modify the CTH, shifting certain boundaries to allow these mines to operate outside the one-kilometer no-mining zone established around the reserve, thus providing them with a lifeline.

    Key Points:

    • Rationalization of CTH: The proposal suggests modifying the CTH's boundaries by retreating in areas identified as "peripheral degraded areas affected by human activities," totaling 48.39 sq km. This includes primarily hilly regions.

    • Compensation for Habitat Loss: To address potential habitat loss, an additional 90.91 sq km of quality tiger habitat from the Sariska buffer will be incorporated into the CTH.

    • Impact on Local Wildlife: Concerns have been raised by local forest officials regarding the exclusion of hilly areas, which are crucial for tiger movement and connectivity within the reserve, as Sariska is characterized by two separated segments.

    • State and Central Government Dynamics: The Rajasthan government plans to present the proposal at the state wildlife board meeting and subsequently to the Standing Committee of the National Board of Wildlife (SC-NBWL) meeting in Dehradun scheduled for June 26. This initiative is highlighted by the cooperation of local ministers from Alwar, contributing to a "double-engine" push for the proposal's approval.

    • Mining Operations Details: Of the 100 mines in the Sariska area, 57 were closed following a Supreme Court order. The surrounding mining operations, specifically in the Tehla tehsil, are estimated to generate annual revenues of about Rs 700-800 crore, with profits ranging from Rs 500-600 crore.

    • Allegations of Corruption: Some mine owners have raised concerns about potential corruption, alleging that they were pressured to contribute financially to facilitate the reopening of their operations.

    • Supreme Court and CEC Report: The Supreme Court's involvement stemmed from issues regarding uncontrolled entry into the Sariska Tiger Reserve, leading to a suo motu order and the establishment of a Central Empowered Committee (CEC) to assess multiple issues, including boundary demarcation. In December 2023, the Supreme Court directed the Rajasthan government to complete the boundary rationalization process within a year, pending final approval.

    • External Expert Oversight: The boundary rationalization has faced skepticism about its influence by mining-related stakeholders, yet officials assert the decisions follow expert guidance focused on conservation and adherence to legal frameworks established by the Supreme Court.

    • Rajasthan’s Historical Context: The Rajasthan government had previously declared 881 sq km as CTH in 2007-08, but activation of the designation has been delayed by legal disputes over land status.

    • Environmental and Economic Stakes: The outcome of the CTH rationalization proposal holds implications not only for local biodiversity conservation efforts but also for the local economy reliant on mining operations.

    In conclusion, the proposal signifies an intersection of economic interests and conservation efforts within the context of pressing judicial oversight. The ensuing actions by both state government and wildlife authorities in response to the Supreme Court’s directives will be of paramount interest to stakeholders in both environmental and mining sectors.

    Environment and Ecology

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