Order of the National Green Tribunal regarding deterioration of Nayar river, Uttarakhand, 05/06/2025

Order of the National Green Tribunal in the matter of In Re: News Item titled "Nayar river is vanishing - a yatra reveals conservation goes beyond science and policy" appearing in ‘The Down To Earth’ dated 03.06.2025. The original application was registered suo-motu based on the news item titled "Nayar …

National action plan on climate change

India is faced with the challenge of sustaining its rapid economic growth while dealing with the global threat of climate change. This threat emanates from accumulated greenhouse gas emissions in the atmosphere, anthropogenically generated through long-term and intensive industrial growth and high consumption lifestyles in developed countries. The national action …

Efficacy of geoengineering to limit 21st century sea-level rise

Geoengineering has been proposed as a feasible way of mitigating anthropogenic climate change, especially increasing global temperatures in the 21st century. The two main geoengineering options are limiting incoming solar radiation, or modifying the carbon cycle. Here we examine the impact of five geoengineering approaches on sea level; SO2 aerosol …

Interactions among Amazon land use, forests and climate : prospects for a near-term forest tipping point

Some model experiments predict a large-scale substitution of Amazon forest by savannah-like vegetation by the end of the twenty-first century. Expanding global demands for biofuels and grains, positive feedbacks in the Amazon forest fire regime and drought may drive a faster process of forest degradation that could lead to a …

Trends in global solar photovoltaic research: silicon versus non-silicon materials

This article reports a comparative analysis of the thrust in solar photovoltaic (PV) research during 1981–1988 and 2001–2008. Global solar PV literature in the latter period recorded a 4.5-fold increase over those in 1981–1988.

Croppers to livestock keepers: livelihood transitions to 2050 in Africa due to climate change

The impacts of climate change are expected to be generally detrimental for agriculture in many parts of Africa. Overall, warming and drying may reduce crop yields by 10 Original Source

The impact of whaling on the ocean carbon cycle: Why bigger was better

Humans have reduced the abundance of many large marine vertebrates, including whales, large fish, and sharks, to only a small percentage of their pre-exploitation levels. Industrial fishing and whaling also tended to preferentially harvest the largest species and largest individuals within a population. We consider the consequences of removing these …

Impact of exceptionally high rain and snowfall on Chir pine plantations in Chamba district of Himachal Pradesh

Climate and its variability have been and continues to be the principal source of exceptional fluctuations which wreaked havoc on forests. In Chamba, up to an elevation of 1,800 m chir pine (Pinus roxburghii Sargent) is the main naturally occurring coniferous tree in forests. Plantations of Chir pine are also …

Making an opportunity in changing climatic scenario - A case of kullu and Lahaul Valley

While rising temperatures and changes in weather conditions is affecting agriculture and is a matter of serious concern, farmers in Himachal Pradesh have converted it into an opportunity. Apple farmers affected by climate change have shifted to crops like kiwi and pomegranate. Farmers who were earlier not able to grow …

Increase in sub-daily precipitation extremes in India under 1.5 and 2.0ºC warming worlds

An increase in short duration precipitation extremes pose challenges for stormwater design in rapidly urbanizing India. The recent Paris Agreement aims to limit the global mean temperature (GMT) below 1.5 °C (and possibly below 2.0°C) from the pre‐industrial level. However, the changes in sub‐daily precipitation extremes in India remain unrecognized …

Extreme weather events over India in the last 100 years

The authors in this paper present a factual and a brief review of the extreme weather events that occurred in India during the last 100 years (1991-2004). The socio-economic impacts of the extreme weather events such as floods, droughts, cyclones, hail storm, thunderstorm, heat and cold waves have been increasing …

Is it enough to have green Common Wealth Games 2010?

India hosted the XIX Common Wealth Games (CWG) 2010, in New Delhi, for the first time. It is only the second time that these games have been organized in Asia. A distinctive feature of the CWG 2010 was the emphasis of the organizers on environment; they wanted these games to …

Rainwater harvesting as an adaptation to climate change

Extreme climate events such as aridity, drought, flood, cyclone and stormy rainfall are expected to leave an impact on human society. They are also expected to generate widespread response to adapt and mitigate the sufferings associated with these extremes. Societal and cultural responses to prolonged drought include population dislocation, cultural …

Review of seasonal climate forecasting for agriculture in sub-Saharan Africa

A review of the use and value of seasonal climate forecasting for agriculture in sub-Saharan Africa (SSA), with a view to understanding and exploiting opportunities to realize more of its potential benefits. Interaction between the atmosphere and underlying oceans provides the basis for probabilistic forecasts of climate conditions at a …

Mahanadi streamflow: climate change impact assessment and adaptive strategies

Impacts of climate change on hydrology are assessed by downscaling large scale general circulation model (GCM) outputs of climate variables to local scale hydrologic variables. This modelling approach is characterized by uncertainties resulting from the use of different models, different scenarios, etc. Modelling uncertainty in climate change impact assessment includes …

Phenomenon of green Sahara

The present-day Sahara Desert was previously a lush green region redundant with wildlife, savannah and swampland owing to a prehistoric climate change in the eastern Sahara, according to an in-depth archaeological study that highlights this theory. Original Source

The expanding Indian desert: Assessment through weighted epochal trend ensemble

One of the biggest challenges in climate research is to arrive at reliable future projections. However, while there now exists a firm scientific basis and procedure for climate forecasts, numerical climate models still suffer from large uncertainties.

Reclaimed islands and new offshore townships in the Arabian Gulf: potential natural hazards

Some of the Arabian Gulf states are busy developing several large, reclaimed islands and offshore townships. These structures are undoubtedly futuristic and the ideas are quite novel. However, there are serious issues of long-term sustainability of these townships. This article reviews and discusses natural hazards that have struck this region …

Study and analysis of surface weather parameters over Haryana using ERA-15 data (1979-93)

Total atmospheric moisture content present in the atmosphere is less than 1% of total atmospheric composition. The atmospheric moisture variability accounts for nearly 10% variation in global hydrological cycle. The atmospheric moisture variability occurs in the form of cloud cover and hence in to the precipitation. A prior knowledge of …

Stochastic behaviour of heat waves and temperature in Hungary

One of the adverse effects of climate change is the proliferation of heat waves. Our investigations show that according to the most widely accepted climate change scenarios heat waves are expected to be essentially longer and hotter than in the past. It might happen that events we now define as …

Climate-driven ecosystem succession in the Sahara: The past 6000 years

Desiccation of the Sahara since the middle Holocene has eradicated all but a few natural archives recording its transition from a "green Sahara" to the present hyperarid desert. Our continuous 6000-year paleoenvironmental reconstruction from northern Chad shows progressive drying of the regional terrestrial ecosystem in response to weakening insolation forcing …

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