Climate Science

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 …

Rising temperatures bring their own CO2

Climate sceptics are right. Temperature increases do precede rises in atmospheric carbon dioxide - the opposite of what you would expect if changes in CO2 levels were really driving climate change. That's the verdict of leading atmospheric modeller Peter Cox, a climate expert at the University of Exeter, UK. Yet …

The IPCC must maintain its rigor

Last year, the Intergovernmental Panel on Climate Change (IPCC) was awarded the Nobel Peace Prize along with Albert Gore Jr., sending a strong message about the importance of the world's future climate. Indeed, for two decades, international scientists and policy-makers contributing to the IPCC process have provided assessments of climate …

Dinosaurs were no strangers to climate change

Dinosaurs might have known a surprising amount about what we think of as a quintessentially modern problem: global warming. Fossilised vegetation from 65 million years ago in the late Cretaceous period, reveals that central Siberia was a lot like modern-day Florida, with lush ferns and lots of rain.

Climate change and adaptation in African agriculture

This study set out to identify and understand the extent to which, and ways in which, information from climate change models is being integrated into agricultural development practice and decision making in Africa. Adaptation to climate variability is not new, but climate change is expected to present heightened risk, new …

Millennial- and orbital-scale changes in the East Asian monsoon over the past 224,000 years

High-resolution speleothem records from China have provided insights into the factors that control the strength of the East Asian monsoon.

The rhythm of the rains

Deposits in a Chinese cave tell the story of the region 's climate stretching back more than 200,000 years, well past the last interglacial warm period

No time to lose in cutting CO2 emissions

We should not wait to cut back on burning fossil fuels until we have developed greener technology to supply our energy needs, despite what many economists are advising their respective governments. Such a waiting game may have deadly consequences. Feb 27, 2008

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.

Ocean CO2 studies look beyond coral

One million tons of atmospheric carbon dioxide are dissolved into the oceans every hour, a process that helps maintain the Earth's delicate carbon balance. But CO2 also makes seawater more acidic, and too much of it can wreak havoc on a marine species.

Panic over global warming misplaced: Geologist

Terming the hype and panic over "global warming' as "unnecessary', well-known hydro-geologist Ritesh Arya seeks to redefine the phenomenon as a natural cyclic process for transporting the weathered and eroded material accumulated during the global cooling phase in the past. Arya, who shot into limelight for harnessing ground water in …

Global warming may not have caused sluggish Atlantic

Judging the effect of climate change on ocean currents could take longer than we thought. The circulation of warm water in the North Atlantic is suspected to be slowing, and the worry is that global warming is to blame.

High-throughout synthesis of zeolitic imidazolate frameworks and application to CO2 capture

A high-throughput protocol was developed for the synthesis of zeolitic imidazolate frameworks (ZIFs). Twenty-five different ZIF crystals were synthesized from only 9600 microreactions of either zinc(II)/cobalt(II) and imidazolate/imidazoloate-type linkers.

Another side to the climate-cloud conundrum finally revealed

Clouds have always given climate modelers fits. The clouds in their models are crude at best, and in the real world, researchers struggle to understand how clouds are responding to-and perhaps magnifying-greenhouse warming; But two new studies now show that much of the worry about clouds' role in the warming …

Trees are not very effective carbon sinks

Trees are not very effective as carbon sinks trees may not be the insurance against global warming we all thought they were. Their ability to store carbon dioxide has diminished due to rise in temperatures and hence they will not be able to act as carbon sinks. Scientists studied two …

Isotopic evidence for glaciation during the Cretaceous supergreenhouse

The Turonian (93.5 to 89.3 million years ago) was one of the warmest periods of the Phanerozoic eon. It has been argued that there may have been several stages of continental ice growth during the period, reflected in both erosional surfaces and geochemical records associated with possible glaciation-induced sea-level falls.

Ocean iron fertilization-moving forward in a sea of uncertainty

The consequences of global climate change are profound, and the scientific community has an obligation to assess the ramifications of policy options for reducing greenhouse gas emissions and enhancing CO2 sinks in reservoirs other than the atmosphere. Ocean iron fertilization (OIF), one of several ocean methods proposed for mitigating rising …

More climate wackiness in the cretaceous supergreenhouse?

In a research by paleoceanographer Andre Bornemann of Leipzig University in Germany and his colleagues analyzed apparently unaltered Foraminifera picked from sediment core drilled from Demerara Rise beneath the western equatorial Atlantic. Following a classic technique, the researchers measured oxygen isotopes in the forams' shells. They found a sharp shift …

Daggers are drawn over revived cosmic ray-climate link

Last year, climate change scientists thought they had driven a silver stake through the idea that fluctuations in solar activity were behind global warming in the last century. Now, a high-profile team led by geophysicist Vincent Courtillot, director of the Institut de Physique du Globe in Paris, has sought to …

Global gardening with a leaky bucket

Reviewing the Stern Report (Stern, 2006), Martin Weitzman notes

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