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 …

Evidence for middle Eocene Arctic sea ice from diatoms and ice-rafted debris

The presence of ice-rafted debris (IRD) in middle Eocene ocean sediments has previously been demonstrated, but it has been unclear whether the source of IRD was land-based glacial ice or sea ice, a distinction with important climate implications. The analysis of a sediment core from the ACEX project now reveals …

Beyond the CO2 connection

At times in the past, mobile ocean fronts in the subtropics have exercised an influence on the magnitude of climate change by decoupling temperature from levels of carbon dioxide in the atmosphere.

Cosmic rays, clouds and climate

Galactic cosmic rays could influence Earth's cloudiness by creating aerosol particles that prompt cloud formation. That possible effect looks to be smaller than thought, but the story won't end there.

Climate Change 2009: faster change and more serious risks

This document reviews and synthesises the science of climate change since the publication of the IPCC

Late Cretaceous seasonal ocean variability from the Arctic

The modern Arctic Ocean is regarded as a barometer of global change and amplifier of global warming and therefore records of past Arctic change are critical for palaeoclimate reconstruction. Little is known of the state of the Arctic Ocean in the greenhouse period of the Late Cretaceous epoch (65

When Earth greened over

Explosion of animal life could have been triggered by blanket of vegetation.

The late Precambrian greening of the Earth

Many aspects of the carbon cycle can be assessed from temporal changes in the 13C/12C ratio of oceanic bicarbonate. 13C/12C can temporarily rise when large amounts of 13C-depleted photosynthetic organic matter are buried at enhanced rates, and can decrease if phytomass is rapidly oxidized2 or if low 13C is rapidly …

Suffering the science: climate change, people, and poverty

This latest report focuses on impacts of climate change and says that chronic hunger may become a norm for most of the world's population, particularly the poor. Combines the latest observations on climate change, with evidence from the communities in 100 countries. 'Suffering the Science' combines the latest scientific observations …

The role of terrestrial plants in limiting atmospheric CO2 decline over the past 24 million years

Environmental conditions during the past 24 million years are thought to have been favourable for enhanced rates of atmospheric carbon dioxide drawdown by silicate chemical weathering. Proxy records indicate, however, that the Earth's atmospheric carbon dioxide concentrations did not fall below about 200

Climatic plant power

Levels of atmospheric carbon dioxide constrain vegetation types and thus also non-biological uptake during rock weathering. That's the reasoning used to explain why CO2 levels did not fall below a certain point in the Miocene.

Climate's smoky spectre

With their focus on greenhouse gases, atmospheric scientists have largely overlooked lowly soot particles. But black carbon is now a hot topic among researchers and politicians. Jeff Tollefson investigates.

UK Met Office hit by cuts to climate project

The UK government has slashed its financial support for the Met Office's climate programme. The move came in the same week that prime minister Gordon Brown laid out ambitious talk of a US$100-billion fund to help developing countries to cope with climate change.

Climate science 2008: major new discoveries

This annual review highlights the latest major research and innovations in climate change science and technology. It presents a timely synthesis of current understanding of global warming at a critically important time for the United States and the world. The international community is negotiating a new global agreement to reduce …

A cold earth resulting in fewer ants

Ants were dominant members of the earth

MS: Train people to manage climate risk

June 29: Renowned agricultural scientist and rice specialist Prof. M.S. Swaminathan on Monday suggested that at least one man and a woman in every village should be trained as climate risk managers. Speaking at an all-party meeting convened by the state government on cooperative farming, Prof. Swaminathan said monsoon management …

Science & Technology - Briefs

evolution Link...or is it? A well-preserved fossil of primitive lemur Darwinius masilla, nicknamed Ida is believed to represent the point from which the group of monkeys, apes and humans (anthropoids) evolved. The fossil lacks the traits which characterize a modern lemur, a non-human primate. Instead it has a bone in …

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