π Key Takeaways on Exposomics and Environmental Health
π Theme of World Environment Day 2025
β Focuses on eliminating plastic pollution, particularly micro-plastics, which pose serious public health risks.
π Need for Exposomics
β A comprehensive approach to disease etiology and prevention must be adopted.
β Exposomics focuses on understanding all environmental exposures throughout an individualβs life.
π Indiaβs Environmental Burden
β India contributes 25% of the global environmental disease burden.
β Rapid economic growth exacerbates environmental exposures and health risks.
π Global Burden of Disease (GBD) Approach
β Environmental risks caused 18.9% of global deaths and 14.4% of all disability-adjusted life years.
π Challenges in Data & Research
β Current environmental burden estimates are underdeveloped, failing to address complex environmental interactions.
π Exposomics as an Emerging Method
β Exposomics studies environmental exposures and their link to health, enabling more comprehensive research.
β Requires interdisciplinary technologies like AI, wearables, and biomonitoring.
π Policy and Infrastructure Needs
β Building capacity for exposomics data generation and interoperable data repositories is essential for actionable results.
β Immediate focus on creating a robust data ecosystem to enable health research.
#EnvironmentalHealth #Exposomics #PlasticPollution #India
π Theme of World Environment Day 2025
β Focuses on eliminating plastic pollution, particularly micro-plastics, which pose serious public health risks.
π Need for Exposomics
β A comprehensive approach to disease etiology and prevention must be adopted.
β Exposomics focuses on understanding all environmental exposures throughout an individualβs life.
π Indiaβs Environmental Burden
β India contributes 25% of the global environmental disease burden.
β Rapid economic growth exacerbates environmental exposures and health risks.
π Global Burden of Disease (GBD) Approach
β Environmental risks caused 18.9% of global deaths and 14.4% of all disability-adjusted life years.
π Challenges in Data & Research
β Current environmental burden estimates are underdeveloped, failing to address complex environmental interactions.
π Exposomics as an Emerging Method
β Exposomics studies environmental exposures and their link to health, enabling more comprehensive research.
β Requires interdisciplinary technologies like AI, wearables, and biomonitoring.
π Policy and Infrastructure Needs
β Building capacity for exposomics data generation and interoperable data repositories is essential for actionable results.
β Immediate focus on creating a robust data ecosystem to enable health research.
#EnvironmentalHealth #Exposomics #PlasticPollution #India
πEnvironmental Impact of Electric Vehicles (EVs)
β Climate Benefit of EVs:
β’ EVs help eliminate greenhouse gas emissions, playing a crucial role against climate change.
β Air Pollution Concern:
β’ Recent study shows EVs may worsen air pollution due to increased tyre wear from their greater weight.
β Study Details:
β’ Conducted by TIFR, IIT Bombay, and a US university.
β’ Established how vehicle weight and speed affect the size of plastic particles released from tyre wear.
β Tyre Particle Pollution:
β’ Tyre wear emits microplastic and nanoplastic particles into the air.
β’ Two degradation types:
β’ Primary fragmentation: Larger particles from sudden braking or potholes.
β’ Sequential fragmentation: Smaller airborne particles from prolonged use and friction.
β Heavier Vehicles, Higher Emissions:
β’ EVs are 15β20% heavier (300β900 kg batteries) than petrol/diesel cars.
β’ Faster acceleration causes more tyre stress, friction, and heat.
β’ Heavier, faster vehicles release more and smaller airborne particles, increasing pollution.
β Global Implications:
β’ With EV sales at 20% globally in 2024, this pollution concern is worldwide.
β’ Calls for revisiting assumptions on EVsβ environmental friendliness.
β Policy and Technological Responses:
β’ Current air quality norms (PM2.5, PM10) donβt cover fine tyre particlesβstandards need updating.
β’ R&D needed for tyres suited to heavier EVs.
β’ Possible solutions include:
β’ Capturing tyre particles at release points.
β’ Improving road quality to reduce fragmentation.
#environment #EVs
β Climate Benefit of EVs:
β’ EVs help eliminate greenhouse gas emissions, playing a crucial role against climate change.
β Air Pollution Concern:
β’ Recent study shows EVs may worsen air pollution due to increased tyre wear from their greater weight.
β Study Details:
β’ Conducted by TIFR, IIT Bombay, and a US university.
β’ Established how vehicle weight and speed affect the size of plastic particles released from tyre wear.
β Tyre Particle Pollution:
β’ Tyre wear emits microplastic and nanoplastic particles into the air.
β’ Two degradation types:
β’ Primary fragmentation: Larger particles from sudden braking or potholes.
β’ Sequential fragmentation: Smaller airborne particles from prolonged use and friction.
β Heavier Vehicles, Higher Emissions:
β’ EVs are 15β20% heavier (300β900 kg batteries) than petrol/diesel cars.
β’ Faster acceleration causes more tyre stress, friction, and heat.
β’ Heavier, faster vehicles release more and smaller airborne particles, increasing pollution.
β Global Implications:
β’ With EV sales at 20% globally in 2024, this pollution concern is worldwide.
β’ Calls for revisiting assumptions on EVsβ environmental friendliness.
β Policy and Technological Responses:
β’ Current air quality norms (PM2.5, PM10) donβt cover fine tyre particlesβstandards need updating.
β’ R&D needed for tyres suited to heavier EVs.
β’ Possible solutions include:
β’ Capturing tyre particles at release points.
β’ Improving road quality to reduce fragmentation.
#environment #EVs
π Key Outcomes of COP29
π New Collective Quantified Goal on Climate Finance (NCQG)
β Triple climate finance to $300 billion annually by 2035.
β€ Mobilize $1.3 trillion per year by 2035 from public and private sources.
π Carbon Markets and Article 6
β Finalized Article 6 rules of the Paris Agreement for international carbon markets.
β€ Facilitates carbon credit trading and financing of climate actions.
π Transparency
β Enhanced Transparency Framework (ETF) finalized for tracking climate actions.
π Adaptation
β Baku Adaptation Roadmap launched to implement Article 7 of the Paris Agreement.
β€ Support program established for Least Developed Countries (LDCs) to implement National Adaptation Plans (NAPs).
π Indigenous Peoples and Local Communities
β Adopted Baku Workplan for knowledge exchange, capacity building, and integrating diverse knowledge into climate policies.
π Gender and Climate Change
β Enhanced Lima Work Programme on Gender extended for another 10 years.
π New Collective Quantified Goal on Climate Finance (NCQG)
β Triple climate finance to $300 billion annually by 2035.
β€ Mobilize $1.3 trillion per year by 2035 from public and private sources.
π Carbon Markets and Article 6
β Finalized Article 6 rules of the Paris Agreement for international carbon markets.
β€ Facilitates carbon credit trading and financing of climate actions.
π Transparency
β Enhanced Transparency Framework (ETF) finalized for tracking climate actions.
π Adaptation
β Baku Adaptation Roadmap launched to implement Article 7 of the Paris Agreement.
β€ Support program established for Least Developed Countries (LDCs) to implement National Adaptation Plans (NAPs).
π Indigenous Peoples and Local Communities
β Adopted Baku Workplan for knowledge exchange, capacity building, and integrating diverse knowledge into climate policies.
π Gender and Climate Change
β Enhanced Lima Work Programme on Gender extended for another 10 years.
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π Indian Biodiversity
β Four global biodiversity hotspots are located in India, making it one of the most biodiverse regions in the world.
β As of 2020-21, there are 981 protected areas, including 566 wildlife sanctuaries and 104 national parks.
πWildlife
β There are 3,167 tigers in India.
β From 2019 to 2020, environmental crimes increased by 78%. (Source: Environment of India, State of 2022)
πForest Conservation
β 30% of Indian districts are susceptible to severe forest fires (CEEW).
β 11% of global greenhouse gas emissions come from deforestation.
πWater Resources
β 75% of families lack access to clean drinking water on their property. (Source: Aayog NITI)
β By 2030, water stress is expected to affect 70% of Indiaβs thermal power plants.
π Water Pollution
β 8 states comprise the majority of contaminated river segments, including Maharashtra, Assam, Kerala, Madhya Pradesh, Gujarat, Odisha, West Bengal, and Karnataka.
β 70% of surface water in India is unsafe for human consumption. (Source: WEF)
πClimate Change
β 40% of Indian districts are experiencing flooding and droughts interchangeably.
β India has committed to achieving net-zero carbon emissions by 2070 at the 26th COP in 2021.
#mains #environment #GS3
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β Four global biodiversity hotspots are located in India, making it one of the most biodiverse regions in the world.
β As of 2020-21, there are 981 protected areas, including 566 wildlife sanctuaries and 104 national parks.
πWildlife
β There are 3,167 tigers in India.
β From 2019 to 2020, environmental crimes increased by 78%. (Source: Environment of India, State of 2022)
πForest Conservation
β 30% of Indian districts are susceptible to severe forest fires (CEEW).
β 11% of global greenhouse gas emissions come from deforestation.
πWater Resources
β 75% of families lack access to clean drinking water on their property. (Source: Aayog NITI)
β By 2030, water stress is expected to affect 70% of Indiaβs thermal power plants.
π Water Pollution
β 8 states comprise the majority of contaminated river segments, including Maharashtra, Assam, Kerala, Madhya Pradesh, Gujarat, Odisha, West Bengal, and Karnataka.
β 70% of surface water in India is unsafe for human consumption. (Source: WEF)
πClimate Change
β 40% of Indian districts are experiencing flooding and droughts interchangeably.
β India has committed to achieving net-zero carbon emissions by 2070 at the 26th COP in 2021.
#mains #environment #GS3
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π Sustainable Nickel Extraction
π New Method: Uses hydrogen to replace carbon, offering a greener alternative.
β Key Advantage: More energy-efficient and environmentally friendly.
π Challenges
β Requires initial investment in infrastructure and renewable energy.
β High purity ferronickel produced, benefiting stainless steel production.
π Sustainability
β Scaling up the process could transform the nickel industry for carbon neutrality
π New Method: Uses hydrogen to replace carbon, offering a greener alternative.
β Key Advantage: More energy-efficient and environmentally friendly.
π Challenges
β Requires initial investment in infrastructure and renewable energy.
β High purity ferronickel produced, benefiting stainless steel production.
π Sustainability
β Scaling up the process could transform the nickel industry for carbon neutrality
π Pollution Dome
π Definition
β Formed when unfavorable atmospheric conditions trap pollutants in urban areas, causing smog buildup.
π Contributing Factors
β Stagnant Air: Calm winds trap pollutants.
β Temperature Inversions: Warm air traps cooler air, preventing vertical dispersion.
β Geographic Bottlenecks: Mountains/valleys restrict air movement, trapping pollutants.
π Additional Factors
β Industrial Activity: Emissions from factories, power plants, and vehicles worsen pollution in stagnant air.
β Unfavorable Weather Patterns: Systems like anticyclones limit atmospheric mixing, trapping pollutants closer to the ground.
#Geography
#environment
π Definition
β Formed when unfavorable atmospheric conditions trap pollutants in urban areas, causing smog buildup.
π Contributing Factors
β Stagnant Air: Calm winds trap pollutants.
β Temperature Inversions: Warm air traps cooler air, preventing vertical dispersion.
β Geographic Bottlenecks: Mountains/valleys restrict air movement, trapping pollutants.
π Additional Factors
β Industrial Activity: Emissions from factories, power plants, and vehicles worsen pollution in stagnant air.
β Unfavorable Weather Patterns: Systems like anticyclones limit atmospheric mixing, trapping pollutants closer to the ground.
#Geography
#environment
π Indiaβs Water Management Needs a New Direction
π Global Context
β 2025: UNβs International Year of Glaciers Preservation
β Focus on mountain & glacier ecosystems as critical water sources
π Indiaβs Water Security Issues
β India uses 60.5% of extractable groundwater
β Over 60% of irrigation & 85% drinking water from groundwater
β Punjab, Rajasthan overuse beyond 100%
β Water table is declining, posing future risks
π Key Frameworks Suggested
β Source to Sea (S2S) Approach: Views water systems as a single continuum
β Push for ridge-to-reef strategies, interlinked governance, and integrated catchment solutions
π Action Steps
β Shift from isolated management to holistic basin-level plans
β Implement causal analysis for better decision-making
β Revive 1987 National Water Policy with new ecological vision
π Global Context
β 2025: UNβs International Year of Glaciers Preservation
β Focus on mountain & glacier ecosystems as critical water sources
π Indiaβs Water Security Issues
β India uses 60.5% of extractable groundwater
β Over 60% of irrigation & 85% drinking water from groundwater
β Punjab, Rajasthan overuse beyond 100%
β Water table is declining, posing future risks
π Key Frameworks Suggested
β Source to Sea (S2S) Approach: Views water systems as a single continuum
β Push for ridge-to-reef strategies, interlinked governance, and integrated catchment solutions
π Action Steps
β Shift from isolated management to holistic basin-level plans
β Implement causal analysis for better decision-making
β Revive 1987 National Water Policy with new ecological vision
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π Oil Pollution
π Examples
β Deepwater Horizon Oil Spill (2010): Largest marine oil spill in Gulf of Mexico.
β Ennore Oil Spill (2017): Collision off Chennai coast, impacting marine life and fishermen.
β MV Wakashio Spill (2020): Ship ran aground off Mauritius, spilling oil in a biodiversity-rich area.
π Causes
β Oil spills from tankers, offshore rigs.
β Leakages from drilling, transportation.
β Ballast water discharge, pipeline ruptures.
π Consequences
β Environmental: Marine life death, long-term damage to ecosystems.
β Economic: Livelihood loss, high cleanup costs.
β Health Hazards: Skin disorders, respiratory issues, contamination of seafood.
π Steps Taken
β International: MARPOL Convention, OPRC, IMO standards.
β India: NOS-DCP, INCOIS oil spill trajectory model.
π Way Forward
β Enforce safety regulations, improve warning systems, develop response capacity, promote bioremediation techniques.
#environment #mains
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π Examples
β Deepwater Horizon Oil Spill (2010): Largest marine oil spill in Gulf of Mexico.
β Ennore Oil Spill (2017): Collision off Chennai coast, impacting marine life and fishermen.
β MV Wakashio Spill (2020): Ship ran aground off Mauritius, spilling oil in a biodiversity-rich area.
π Causes
β Oil spills from tankers, offshore rigs.
β Leakages from drilling, transportation.
β Ballast water discharge, pipeline ruptures.
π Consequences
β Environmental: Marine life death, long-term damage to ecosystems.
β Economic: Livelihood loss, high cleanup costs.
β Health Hazards: Skin disorders, respiratory issues, contamination of seafood.
π Steps Taken
β International: MARPOL Convention, OPRC, IMO standards.
β India: NOS-DCP, INCOIS oil spill trajectory model.
π Way Forward
β Enforce safety regulations, improve warning systems, develop response capacity, promote bioremediation techniques.
#environment #mains
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π Sustainable Nickel Extraction
π Breakthrough Method
β High-purity ferronickel produced with carbon neutrality in mind.
β Key Advantage: Eliminates extensive refining steps, making the process more sustainable.
π Challenges Ahead
β Scalability: High initial investment in infrastructure & renewable energy.
β Further Research: Deeper study in thermodynamic kinetics and oxygen supply is needed.
π Breakthrough Method
β High-purity ferronickel produced with carbon neutrality in mind.
β Key Advantage: Eliminates extensive refining steps, making the process more sustainable.
π Challenges Ahead
β Scalability: High initial investment in infrastructure & renewable energy.
β Further Research: Deeper study in thermodynamic kinetics and oxygen supply is needed.
π Why Scientists Study Tardigrades π¦
π Tardigrades (also called water bears): Tiny, resilient, 8-legged organisms.
π Space experiment: Sent to the ISS to study their survival and resilience.
π Key question: How do tardigrades survive extreme space conditions like radiation, temperature changes, and vacuum?
π Purpose: Discovering insights for human survival in space and crop protection on Earth.
#SpaceScience #Tardigrades #ISS
π Tardigrades (also called water bears): Tiny, resilient, 8-legged organisms.
π Space experiment: Sent to the ISS to study their survival and resilience.
π Key question: How do tardigrades survive extreme space conditions like radiation, temperature changes, and vacuum?
π Purpose: Discovering insights for human survival in space and crop protection on Earth.
#SpaceScience #Tardigrades #ISS
π Water Stress: A Looming Crisis for India
π NITI Aayog Study (2018)
β 600 million Indians may be impacted by water stress
β Could cause a 6% loss in GDP
π Pollution & Resource Risk
β 311 polluted river stretches in 30 States/UTs
β 53% of solid waste remains untreated
π Global Risk Alert
β India flagged as high-risk in World Resources Instituteβs Water Risk Atlas
β οΈ Urgent reforms in water management are critical for economic stability and resource sustainability.
π NITI Aayog Study (2018)
β 600 million Indians may be impacted by water stress
β Could cause a 6% loss in GDP
π Pollution & Resource Risk
β 311 polluted river stretches in 30 States/UTs
β 53% of solid waste remains untreated
π Global Risk Alert
β India flagged as high-risk in World Resources Instituteβs Water Risk Atlas
β οΈ Urgent reforms in water management are critical for economic stability and resource sustainability.
World's rivers are leaking olg CO2 into air
π Rivers Leaking Ancient COβ into Atmosphere
π Key Findings
β 60% of COβ from rivers comes from millennia-old deep soil carbon, low in carbon-14.
β Rivers are leaking old COβ, returning ancient carbon to the air.
π Implications
β The leak rate matches the carbon absorbed by land ecosystems.
β Carbon-cycle models may be undercounting land carbon losses due to this overlooked source.
π Rivers Leaking Ancient COβ into Atmosphere
π Key Findings
β 60% of COβ from rivers comes from millennia-old deep soil carbon, low in carbon-14.
β Rivers are leaking old COβ, returning ancient carbon to the air.
π Implications
β The leak rate matches the carbon absorbed by land ecosystems.
β Carbon-cycle models may be undercounting land carbon losses due to this overlooked source.
π¦ New App Helps Commuters Pick βGreenerβ Routes
π About DRUM App
β Developed by IIT-Kharagpur, the DRUM app offers 5 route options: shortest, fastest, least pollution (LEAP), least energy (ECAP), and combined.
β Real-time data helps reduce pollution exposure by 50% in Delhi (LEAP route).
π Key Features
β Uses GraphHopper + Mapbox for real-time traffic and route generation.
β Routes with high pollution, energy use, or delay are eliminated.
β Prioritizes health and sustainability, tested on Delhi roads.
π Broader Goals
β May extend to bikes, rickshaws, walking and integrate street sensors.
β Aims to cut urban air pollution, which causes 72% of city deaths yearly.
π About DRUM App
β Developed by IIT-Kharagpur, the DRUM app offers 5 route options: shortest, fastest, least pollution (LEAP), least energy (ECAP), and combined.
β Real-time data helps reduce pollution exposure by 50% in Delhi (LEAP route).
π Key Features
β Uses GraphHopper + Mapbox for real-time traffic and route generation.
β Routes with high pollution, energy use, or delay are eliminated.
β Prioritizes health and sustainability, tested on Delhi roads.
π Broader Goals
β May extend to bikes, rickshaws, walking and integrate street sensors.
β Aims to cut urban air pollution, which causes 72% of city deaths yearly.
π MATSYA 6000: Indiaβs Deep Ocean Mission
π About the Mission
MATSYA 6000, part of the Samudrayan project, is designed to carry 3 humans to a depth of 6000 meters under the sea for scientific exploration and biodiversity research. India will become the 6th country capable of human submersible missions.
π Key Components
β Deep Sea Mining: Harvesting polymetallic nodules from the Central Indian Ocean Basin.
β Manned Submersible: Enabling human presence at extreme depths for observation.
β Ocean Climate Change Services: Understanding ocean dynamics and climate.
β Marine Biotechnology: Exploring deep-sea biodiversity for sustainable resources.
π SWOT Analysis
β Strengths: Indigenous submersible, strategic ocean mapping, access to critical minerals.
β Weaknesses: High costs, technological complexity, environmental risks.
β Opportunities: Green energy, marine biotech, Indo-Pacific strategic leadership.
β Threats: Ecosystem disruption, geopolitical tensions, regulatory challenges.
#environment
#GovernmentSchemes
π About the Mission
MATSYA 6000, part of the Samudrayan project, is designed to carry 3 humans to a depth of 6000 meters under the sea for scientific exploration and biodiversity research. India will become the 6th country capable of human submersible missions.
π Key Components
β Deep Sea Mining: Harvesting polymetallic nodules from the Central Indian Ocean Basin.
β Manned Submersible: Enabling human presence at extreme depths for observation.
β Ocean Climate Change Services: Understanding ocean dynamics and climate.
β Marine Biotechnology: Exploring deep-sea biodiversity for sustainable resources.
π SWOT Analysis
β Strengths: Indigenous submersible, strategic ocean mapping, access to critical minerals.
β Weaknesses: High costs, technological complexity, environmental risks.
β Opportunities: Green energy, marine biotech, Indo-Pacific strategic leadership.
β Threats: Ecosystem disruption, geopolitical tensions, regulatory challenges.
#environment
#GovernmentSchemes
π Kerala Seeks Amnesty Scheme for Wildlife Trophy Declaration
π Whatβs Proposed?
β Kerala plans to request the Centre for an amnesty scheme allowing people to declare wildlife trophies in their custody, last permitted in 2003.
β As per Section 40 of Wildlife (Protection) Act, 1972, undeclared trophies are illegal.
π Whoβs Eligible?
β Legal heirs with valid ownership licenses issued by the Forest Department.
β Only trophies inherited, not illegally acquired.
π Penalties
β Conviction may lead to 3β7 years jail + βΉ25,000 fine.
π Centreβs Role
β Final approval lies with the Union Ministry of Environment, Forest & Climate Change.
π Whatβs Proposed?
β Kerala plans to request the Centre for an amnesty scheme allowing people to declare wildlife trophies in their custody, last permitted in 2003.
β As per Section 40 of Wildlife (Protection) Act, 1972, undeclared trophies are illegal.
π Whoβs Eligible?
β Legal heirs with valid ownership licenses issued by the Forest Department.
β Only trophies inherited, not illegally acquired.
π Penalties
β Conviction may lead to 3β7 years jail + βΉ25,000 fine.
π Centreβs Role
β Final approval lies with the Union Ministry of Environment, Forest & Climate Change.
π Climate Change: Sensitivity, Adaptability and Vulnerability
β Sensitivity:
- Sensitivity refers to the extent a system is impacted by climate-related changes.
- It includes the response to changes in temperature or extreme weather events (e.g., crop yield changes due to temperature or coastal flooding due to sea level rise).
β Adaptive Capacity:
- Adaptive capacity refers to a system's ability to adjust to climate change, including variability and extremes.
- This ability helps to manage potential damage and take advantage of opportunities or cope with the effects of climate changes.
β Vulnerability:
- Vulnerability describes the degree to which a system is susceptible to, or unable to cope with, adverse effects of climate change.
- It depends on the magnitude, rate, and variation of climate change and its sensitivity and adaptive capacity.
π Conclusion:
- Sensitivity, adaptability, and vulnerability form the three key factors that determine how a system will respond to climate change, with each factor influencing the overall resilience of the system.
β Sensitivity:
- Sensitivity refers to the extent a system is impacted by climate-related changes.
- It includes the response to changes in temperature or extreme weather events (e.g., crop yield changes due to temperature or coastal flooding due to sea level rise).
β Adaptive Capacity:
- Adaptive capacity refers to a system's ability to adjust to climate change, including variability and extremes.
- This ability helps to manage potential damage and take advantage of opportunities or cope with the effects of climate changes.
β Vulnerability:
- Vulnerability describes the degree to which a system is susceptible to, or unable to cope with, adverse effects of climate change.
- It depends on the magnitude, rate, and variation of climate change and its sensitivity and adaptive capacity.
π Conclusion:
- Sensitivity, adaptability, and vulnerability form the three key factors that determine how a system will respond to climate change, with each factor influencing the overall resilience of the system.
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