The study on the Gangotri Glacier System (GGS) further details that while mean annual temperature increased, snowmelt declined due to reduced snow cover, and rainfall-runoff and base flow increased over 1980–2020. The GGS comprises several glaciers, including the largest, Gangotri (140 km²), covering 549 square km. It receives precipitation from western disturbances in winter and the Indian summer monsoon. The findings imply warming-induced hydrological changes, with increased rainfall-runoff and base flow trends. This year's intense summer monsoon in North India, with significantly more rain, has led to frequent floods, often mislabeled as 'cloudbursts,' which are defined as over 10 cm of rainfall in an hour over an area less than 30 square km.
- Despite warming, GGS experienced declining snowmelt but increasing rainfall-runoff and base flow from 1980-2020.
- The GGS includes glaciers like Meru, Raktavaran, Chaturangi, and the largest, Gangotri (140 km²).
- The GGS receives precipitation from both winter western disturbances and the Indian summer monsoon.
A recent study has reconstructed the long-term discharge flow of the Gangotri Glacier System (GGS), a critical water source for the Bhagirathi river in the central Himalayas. The analysis indicates a shift in the maximum discharge peak from August to July post-1990, attributed to decreased winter precipitation and enhanced early summer melting. While the mean annual temperature increased, snowmelt declined due to reduced snow cover, whereas rainfall-runoff and base flow increased. The Hindu Kush Himalaya's snow and ice reserves are vital for major rivers, and climatic changes are altering the cryosphere and hydrological cycle, accelerating glacial retreat and shifting seasonal discharge patterns, with implications for regional water security.
- The Gangotri Glacier System (GGS) shows a shift in its maximum discharge peak from August to July since 1990.
- This shift is linked to decreased winter precipitation and increased melting in early summer due to warming.
- The GGS is a crucial water source for the Bhagirathi river, part of the upper Ganga basin.
An IISER Kolkata study suggests that microbes capable of degrading plastics might also be reservoirs of antibiotic resistance genes (ARGs), with plastic particles potentially acting as hotbeds for gene accumulation and spread. The study, conducted in the Sundarbans, found that the floating bacterial community possesses numerous plastic-degrading enzyme (PDE) genes, particularly for polyethylene glycol (PEG), and these microbes frequently exhibit antibiotic and metal resistance traits. While offering a natural solution to plastic pollution, this dual capacity raises concerns that enriching such microbes could inadvertently amplify antimicrobial resistance (AMR), threatening public health and potentially accelerating ARG transfer to humans.
- A study by IISER Kolkata found that plastic-digrading microbes in the Sundarbans also carry antibiotic resistance genes (ARGs).
- Plastic particles may serve as sites for the accumulation and horizontal transfer of resistance genes among microbes.
- The Sundarbans' microbial community shows adaptation to plastic waste, possessing enzymes to degrade various plastic polymers, especially PEG.
The Kerala government is considering an amendment to the Wildlife Protection Act, 1972, to tackle specific challenges related to human-wildlife conflict. The proposed amendment would authorize the Chief Wildlife Warden to permit killing, tranquilizing, or capturing a wild animal if it causes serious injury or is found in a public place. Law Minister P. Rajeeve stated that the State government is competent to propose such an amendment to a Central law, which would require Presidential assent after being passed by the State Assembly, as per Article 254(2) of the Constitution. The State has long struggled with the Central law's limitations in managing this critical issue.
- Kerala plans to amend the Wildlife Protection Act, 1972, to better manage human-wildlife conflict.
- The proposed amendment would allow the Chief Wildlife Warden to authorize the killing, tranquilization, or capture of dangerous wild animals.
- The State government believes it is competent to amend a Central law on a Concurrent List subject, requiring Presidential assent.
India's Environment Ministry and Japan have signed a Memorandum of Cooperation (MoC) on a Joint Crediting Mechanism (JCM) to advance low-carbon technology projects. Under JCM, Japan invests in low-carbon technologies in developing countries like India, earning carbon credits for its national emission reduction targets. This initiative aims to boost investment, technology transfer, and localization of low-carbon technologies in India, fostering a domestic ecosystem. The MoC will also facilitate international trading of carbon credits under Article 6.2 of the Paris Agreement, aligning with India's Nationally Determined Contribution (NDC) commitments to reduce emission intensity and increase non-fossil fuel capacity by 2030.
- India and Japan signed a Memorandum of Cooperation (MoC) on a Joint Crediting Mechanism (JCM).
- The JCM allows Japan to invest in low-carbon technologies in India and receive carbon credits for its emission reduction targets.
- The initiative aims to promote investment, technology transfer, and localization of low-carbon technologies in India.
India, heavily reliant on crude oil and natural gas imports, faces significant energy security risks amidst global instability. The article highlights historical energy shocks and proposes a doctrine of energy sovereignty anchored in domestic capacity, diversified technology, and resilient systems. Five foundational pillars are outlined: coal gasification for indigenous energy, biofuels for rural empowerment and national security, nuclear power as a zero-carbon baseload, green hydrogen for self-reliance, and pumped hydro storage for grid balancing. This strategy aims to build an uninterrupted, affordable, and indigenous energy future, reducing vulnerability to geopolitical shifts and external dependencies.
- India's high dependence on imported crude oil and natural gas poses a significant national risk.
- Global energy security has been reshaped by five major historical shocks, emphasizing the need for resilience.
- India must adopt an energy sovereignty doctrine based on domestic capacity, diversified technology, and resilient systems.
Heavy monsoon rains have caused widespread destruction across North India, highlighting India's increasing vulnerability to erratic weather patterns. The article argues that framing these calamities as "unprecedented" distracts from learning crucial lessons. It criticizes continued forest clearance, road-widening in eco-sensitive zones without proper engineering, and underdevelopment of early warning and evacuation systems. The piece emphasizes the need for a shift from reactive relief operations to proactive, sustainable infrastructure, landslide mitigation, and robust early-warning systems to systematically reduce vulnerabilities before the next monsoon cycle.
- Erratic and intense monsoon rains are causing widespread destruction across North India, indicating increasing unpredictability.
- The current approach of reactive relief operations is insufficient; a shift to preventive strategies is imperative.
- Continued forest clearance and unscientific road-widening in eco-sensitive zones exacerbate monsoon vulnerabilities.
A year-long study by the Tamil Nadu Forest Department and the Advanced Institute for Wildlife Conservation (AIWC), Vandalur, has identified eight species of fireflies in the Anamalai Tiger Reserve (ATR). This marks the first systematic study in the State where genetic analysis was undertaken to confirm different species. The study, conducted from April 2024 to March 2025, covered dense forests and agroecosystems. Researchers identified species like Abscondita perplexa, Abscondita terminalis, and Asymmetricata humeralis, and found that light pollution and pesticide/water pollution contribute to the decline of firefly populations, highlighting fireflies as indicator species for wildlife health.
- A year-long study in the Anamalai Tiger Reserve (ATR) identified eight species of fireflies, marking the first genetic analysis of fireflies in Tamil Nadu.
- The study, conducted by the Tamil Nadu Forest Department and AIWC, provides a benchmark for future research on firefly distribution and abundance.
- Fireflies are considered indicator species for wildlife health, and their populations are threatened by light pollution, pesticide use, and water pollution.
A cloudburst is a sudden, intense, localized rainfall event that can cause severe damage, particularly in mountainous regions. The India Meteorological Department (IMD) defines a cloudburst as over 100 mm of rain in one hour over an area of about 20-30 sq. km, a threshold used to identify flash flood and landslide risks. The World Meteorological Organisation (WMO) defines it as 100 mm per hour or more, or 60 mm per hour for short bursts. Physically, cloudbursts occur when strong updrafts in thunderstorms hold large amounts of water, which is suddenly released when the updraft collapses. Orographic lifting, where moist air is forced upwards by mountains, also contributes to rapid condensation and heavy rain, leading to these short-lived but highly destructive events.
- Cloudbursts are sudden, intense, and localized rainfall events capable of causing severe damage, especially in mountainous areas.
- The India Meteorological Department (IMD) defines a cloudburst as more than 100 mm of rain in one hour over 20-30 sq. km.
- The World Meteorological Organisation (WMO) defines cloudbursts as 100 mm per hour or more, or 60 mm per hour for short bursts.
A new international study reveals that damage from non-native invasive plants and animals has cost society over $2.2 trillion worldwide, with costs potentially underestimated by 16 times. India shows the highest percentage discrepancy in management expenditure (1.16 billion percent), suggesting substantial unrecorded or underreported spending. Globally, non-native plants are the most economically impactful, costing $926.38 billion, followed by arthropods and mammals. The study attributes the spread of invasive species to trade and travel, exacerbated by globalization. It calls for improved data collection, comprehensive tracking of expenditures, and robust reporting mechanisms in India, alongside better implementation of international policies like the Ballast Water Management Convention and Convention on Biological Diversity.
- Global economic costs from invasive species exceed $2.2 trillion, with previous estimates significantly underestimating the true impact.
- India exhibits the highest percentage discrepancy in management expenditure for invasive species, indicating substantial hidden costs due to underreporting.
- Non-native plants are the most economically damaging invasive species globally, followed by arthropods and mammals.
The Supreme Court is navigating the complex issue of free-roaming dogs, seeking to balance compassion with public safety. Initial directives for shelter confinement were later modified to permit release after vaccination and deworming, retaining only aggressive or rabid animals. The article highlights India's significant rabies burden and the ineffectiveness of the Animal Birth Control Rules without adequate sterilisation coverage. It advocates for properly resourced and regulated shelters with veterinary standards and transparent oversight, noting that administrative neglect hinders current efforts. A modern statute is proposed to replace the outdated Prevention of Cruelty to Animals Act 1960, mandating minimum standards for municipal shelters and accurate stray dog counts.
- The Supreme Court is addressing the issue of free-roaming dogs, aiming to reconcile animal welfare with public safety concerns.
- Existing Animal Birth Control Rules are ineffective without achieving a high percentage of sterilisation coverage.
- There is a critical need for well-resourced, regulated animal shelters adhering to veterinary standards and transparent oversight.
Congress leader Jairam Ramesh alleged that the Centre's ₹72,000-crore mega infrastructure project on Great Nicobar island is being "bulldozed through" and is a "maha ecological disaster." He cited a report that the Tribal Council in Nicobar Islands complained to the Tribal Affairs Minister, stating that the Andaman and Nicobar Islands administration falsely claimed that tribespeople's rights under the Forest Rights Act (FRA) had been "identified and settled" and consent obtained. The project includes a trans-shipment port, airport, township, and power plant, raising serious concerns about environmental impact and tribal rights.
- A ₹72,000-crore mega infrastructure project in Great Nicobar Island faces allegations of being an ecological disaster and violating tribal rights.
- The Tribal Council claims the administration falsely reported that Forest Rights Act (FRA) rights were settled and consent obtained for land diversion.
- The project encompasses a trans-shipment port, airport, township, and power plant, indicating significant developmental impact.
Heavy rains and flash floods in Uttarakhand's Chamoli district, specifically Tharali town, have resulted in one death, one missing person, and over 30 injuries. The disaster caused extensive damage to private and public property, including homes, vehicles, and roads. SDRF, NDRF, Army, and ITBP teams are involved in relief and rescue operations. The India Meteorological Department has issued orange and red alerts for Chamoli and other districts, indicating continued risk. A temporary relief and rehabilitation centre has been set up, and schools are closed.
- Flash floods in Uttarakhand's Chamoli district caused significant loss of life and property damage.
- Multiple agencies including SDRF, NDRF, Army, and ITBP are engaged in extensive relief and rescue operations.
- The India Meteorological Department has issued high alerts for the region, indicating ongoing risk of heavy rainfall.
The Tribal Council of Little Nicobar has accused the Andaman and Nicobar Islands administration of falsely claiming that the forest rights of tribal people under the Forest Rights Act (FRA), 2006, were "identified and settled" for the ₹72,000-crore Great Nicobar mega infrastructure project. This alleged misrepresentation led to forest clearances for the project, which includes a transshipment port, airport, power plant, and township. The council asserts that no consent was given and FRA rights have not even been initiated. The administration, however, issued a certificate in 2022 claiming settlement, and previously argued that the Protection of Aboriginal Tribes Act of 1956 (PAT56) superseded FRA requirements, allowing the administrator full authority to divert forest land.
- The Great Nicobar mega infrastructure project faces controversy over the alleged false settlement of tribal forest rights.
- The Andaman and Nicobar administration is accused of misrepresenting that tribal rights under the Forest Rights Act (FRA), 2006, were settled.
- The Tribal Council of Little Nicobar denies giving consent and states that the FRA process has not been initiated.
The International Solar Alliance (ISA) plans to establish a Global Capability Centre (GCC) in India, envisioned as a "Silicon Valley for solar," and set up 17 centres of excellence globally by the end of the year. The GCC in India will serve as a hub, providing testing, lab training, and a start-up ecosystem, connecting all these centres. The ISA, co-founded by India and France during the 2015 Paris Climate Conference (COP), is headquartered in Gurugram, Haryana, and has approximately 100 member countries. This initiative aims to enhance human capability in solar energy, with many countries looking to India for engineers to implement solar projects. India's cumulative solar capacity reached about 119 gigawatts (GW) by July 2025.
- The International Solar Alliance (ISA) plans to establish a Global Capability Centre (GCC) in India, akin to a "Silicon Valley for solar."
- The ISA will also set up 17 centres of excellence globally, with the GCC acting as a central hub for testing, training, and start-up ecosystems.
- The ISA was conceptualized by India and France during the 2015 Paris Climate Conference (COP).
India's Ministry of Finance released a draft Climate Finance Taxonomy to mobilize climate-aligned investments, prevent greenwashing, and clarify contributions to mitigation, adaptation, or transition. The article proposes a robust review architecture, including annual reviews for timely course correction and recurring five-year reviews aligned with India's Nationally Determined Contributions and global stocktake. It emphasizes legal coherence with existing laws (Energy Conservation Act, SEBI norms, Carbon Credit Trading Scheme) and international obligations, ensuring clarity and enforceability. The taxonomy's success hinges on transparent review, stakeholder engagement, and accessibility for all sectors, including MSMEs and the informal sector.
- India's draft Climate Finance Taxonomy aims to guide climate-aligned investments, combat greenwashing, and clarify contributions to climate goals.
- A two-tiered review mechanism is proposed: annual reviews for course correction and five-year comprehensive reviews aligned with national and international climate commitments.
- The review must ensure legal coherence with Indian laws like the Energy Conservation Act and SEBI norms, and international obligations.
This article pays tribute to M.S. Swaminathan, highlighting his pivotal role in India's food self-sufficiency during the 1960s Green Revolution. It extracts key lessons for future scientific development, emphasizing the need for international collaboration, reduced bureaucratic control, and political leadership that listens directly to scientists. The article notes that Subramaniam's support was crucial for funding trials of new wheat seeds, which faced initial resistance. It also points out that while the Green Revolution was a success, environmental issues from excessive water and fertilizer use remain unaddressed, and India's agricultural research funding and quality lag behind China.
- M.S. Swaminathan was instrumental in India's food self-sufficiency during the Green Revolution in the 1960s.
- Key lessons include fostering international scientific collaboration and reducing bureaucratic hurdles for research.
- Political leadership, exemplified by C. Subramaniam, must directly engage with scientists on complex technical issues.
Global efforts to establish a universal treaty on eliminating plastic pollution are facing significant resistance, with the sixth attempt by the United Nations Environment Programme (UNEP) failing to reach consensus. Disagreement persists among major countries on whether the treaty should mandate eliminating plastic production itself, or focus solely on waste management and recycling. India, generating 3.4 million tonnes of plastic waste annually and recycling only 30%, has seen its plastic consumption rise, despite a ban on single-use plastic items. Globally, over 430 MT of plastic is produced annually, with two-thirds becoming waste and contributing significantly to greenhouse gas emissions. Some nations view calls to cut production as trade barriers, highlighting the need for greater trust and open dialogue to overcome the impasse.
- Global negotiations for a plastic pollution treaty, led by UNEP, are stalled due to disagreements over addressing plastic production.
- India generates 3.4 million tonnes of plastic waste annually, recycling only 30%, and its consumption is rising.
- Worldwide, 430 MT of plastic is produced annually, with a large portion becoming waste and contributing to greenhouse gas emissions.
India has achieved its target of 20% ethanol blending (E20) in petrol five years ahead of schedule, driven by fiscal incentives for the sugarcane industry. While the government cites benefits like reduced emissions, increased farmer income, and lower oil import bills, vehicle owners express concerns about reduced mileage and increased maintenance. The policy's environmental impact is debated, especially regarding the water-intensive nature of sugarcane cultivation and its contribution to land degradation. India is also diversifying ethanol sources to include rice and corn, leading to increased corn imports. The US views India's policy as a trade barrier. Furthermore, the article questions if ethanol blending truly aids decarbonization compared to the faster adoption of EVs, which faces its own challenges like dependence on rare earth elements.
- India achieved its 20% ethanol blending target (E20) ahead of schedule, primarily using sugarcane.
- Vehicle owners report concerns about reduced mileage and higher maintenance costs with E20 petrol.
- The environmental sustainability of sugarcane-based ethanol is questioned due to its high water demand and impact on land degradation.
A new study published in Nature Ecology & Evolution reveals a universal "onion-like" pattern in how biodiversity is organized globally, with dense, unique biodiversity at the center and grading outward to porous, mixed margins. Researchers analyzed over 30,000 species across various taxa, tiling the earth into cells and using network analysis to group co-occurring species into seven biogeographical sectors. These sectors appear repeatedly within major regions and taxonomic groups. The study found that temperature and rainfall models could predict sector belonging, implying environmental filters determine species survival. This understanding can guide conservation efforts by identifying key habitats and corridors, moving beyond traditional protected areas.
- A study found a universal 'onion-like' pattern in global biodiversity organization, with unique species at the core and mixed margins.
- Researchers analyzed over 30,000 species across various taxa, using network analysis to identify seven recurring biogeographical sectors.
- Environmental factors like temperature and rainfall were found to predict which sector a cell belonged to, indicating their role as filters.
A new study reveals that native and invasive plant species are altering the riverine ecosystem of Assam's Dibru-Saikhowa National Park (DSNP), the sole habitat for feral horses in India. Native "grassland invaders" like Bombax ceiba and Lagerstroemia speciosa, along with invasive species such as Chromolaena odorata and Mikania micrantha, are stifling grasslands. The study, "Grasslands in Flux," analyzing LULC changes from 1999 to 2024, found a significant decline in grasslands and an increase in shrubland and degraded forest. This degradation threatens grassland-obligate faunal species like the Bengal florican, hog deer, and swamp grass babbler, necessitating targeted recovery projects, invasive species control, and improved surveillance.
- Dibru-Saikhowa National Park (DSNP) in Assam, India, is facing threats from native and invasive plant species.
- The park is the only habitat for feral horses in India.
- The study "Grasslands in Flux" revealed a significant decline in grasslands and an increase in shrubland and degraded forest between 1999 and 2024.
International negotiations for a binding treaty to restrict plastic pollution are deadlocked, partly due to disagreements on including health impacts. Plastics, derived from fossil fuels, contain over 16,000 chemicals, many with unknown health effects. Studies link exposure to these chemicals (e.g., bisphenols, phthalates) to thyroid dysfunction, hypertension, and various cancers. Microplastics, found in human blood and organs, also pose unclear health risks. India, while having a ban on single-use plastics and waste management policies, views plastic primarily as a waste management problem, expressing reservations about including health discussions in the global treaty, suggesting these are matters for the WHO.
- International negotiations for a plastic pollution treaty are stalled, partly due to the contentious issue of including health impacts.
- Plastics contain numerous chemicals, including monomers, polymers, and additives, many with uncertain effects on human health.
- Research indicates associative links between exposure to plastic chemicals and various health issues, such as thyroid problems, hypertension, and cancers.
For the second time since October 2024, the Intergovernmental Negotiating Committee (INC 5.2), comprising about 180 countries, failed to reach a consensus on a legally binding global plastics treaty. The talks, held in Geneva, concluded without reconciling deep differences among nations, primarily concerning whether cutting plastic production should be an integral part of ending plastic pollution. A majority of countries, approximately 80-100, advocated for an "ambitious" treaty with a plastic phase-out plan. Calls were made for toxic-free reuse, refill, repair systems, significant cuts to plastic production, strong chemical controls, and a dedicated article on health, with the European Union leading the push for an ambitious agreement.
- Global talks for a legally binding plastics treaty have again ended in a stalemate, failing to reach a consensus.
- The primary point of contention was whether plastic production cuts should be central to the treaty.
- A majority of participating countries support an "ambitious" treaty that includes a phase-out plan for plastics.
India's waterways are increasingly threatened by the invasive water hyacinth (Eichhornia crassipes), which forms green deserts on rivers, backwaters, and lakes. This plant, introduced during colonial rule, devastates aquatic biodiversity by blocking sunlight and oxygen, and disrupts livelihoods, especially for farmers and fishermen in regions like Kerala's Kuttanad. Beyond ecological damage, its decay releases methane, a potent greenhouse gas. While local communities have experimented with turning it into handicrafts, paper, and biogas, these efforts are isolated. The article calls for a coordinated national policy with region-specific strategies, single-point accountability, and scientific removal drives, emphasizing that this is not just an ecological problem but impacts rural livelihoods, food security, and climate resilience.
- Water hyacinth (Eichhornia crassipes) is an invasive aquatic plant rapidly spreading across India's waterways, forming dense mats that suffocate aquatic ecosystems.
- The invasion severely impacts rural livelihoods, particularly for farmers and fishermen, by blocking irrigation, impeding water flow, and destroying fish nurseries.
- Beyond ecological damage, decaying water hyacinth releases methane, a greenhouse gas significantly more potent than carbon dioxide.