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 …

Methane level shoots up in atmosphere

BY DHARAM SHOURIE NEW YORK The amount of methane in earth

Global warming throws some curves in the Atlantic Ocean

A new computer modeling study confirms that global warming is changing the salinity of seawater in the North Atlantic.

Risk communication on climate: Mental models and mass balance

Public confusion about the urgency of reductions in greenhouse gas emissions results from a basic misconception.

Potent greenhouse gas more prevalent in atmosphere than previously assumed

Compound used in manufacture of flat panel televisions, computer displays, microcircuits, solar panels is 17,000 times more potent greenhouse gas than carbon dioxide A powerful greenhouse gas is at least four times more prevalent in the atmosphere than previously estimated, according to a team of researchers at Scripps Institution of …

AIRS: Monitoring earths atmosphere

This factsheet provides the information on the Atmospheric Infrared Sounder(AIRS), which advances climate research and weather prediction into the 21st century. AIRS is one of six instruments onboard Aqua, a satellite that is part of NASA

A Brief History of CO2 Measurements

JPL Historian Erik Conway provides an overview of the sequence of events that lead to the link between human activity, carbon dioxide, and global warming. Conway also examines how the spaceborne instrument, the Atmospheric Infrared Sounder, has become part of the story. Charles Keeling points out the steady rise in …

AIRS and Carbon Dioxide: From Measurement to Science

How does a spaceborne instrument like AIRS extract carbon dioxide from Earth's atmosphere, and what is its data revealing? The level of carbon dioxide in the Earth's atmosphere has been on the rise since the late 19th century. Charles David Keeling first proved this by careful measurements of samples collected …

Mapping the future

Climate change will see a northward movement in Europe so far, potential climate change impacts are studied for broad regions, countries for instance. Researchers of Wageningen University in the Netherlands have presented an alternative approach for predicting climate change impacts in Europe. They studied four environmental zones in the continent. …

NASA Maps Shed Light on Carbon Dioxide's Global Nature

A NASA/university team has published the first global satellite maps of the key greenhouse gas carbon dioxide in Earth's mid-troposphere, an area about 8 kilometers, or 5 miles, above Earth. The team's study reveals new information on how carbon dioxide, which directly contributes to climate change, is distributed in Earth's …

AIRS/AMSU/HSB: Providing new insights into earths weather and climate

This brochure describes the Atmospheric Infrared Sounder. AIRS enhances the quality of global meteorological observations which yields considerable economic benefits through more reliable climate prediction, improved weather forecasts, better understanding of the factors influencing air quality, and mitigation of the economic and human costs of natural hazards. Terra, launched in …

A role for atmospheric CO2 in preindustrial climate forcing

Complementary to measurements in Antarctic ice cores, stomatal frequency analysis of leaves of land plants preserved in peat and lake deposits can provide a proxy record of preindustrial atmospheric CO2 concentration. CO2 trends based on leaf remains of Quercus robur (English oak) from the Netherlands support the presence of significant …

Impacts research seen as next climate frontier

Scientists hope that the next U.S. president will devote more of the billion-dollar climate change research program to impacts.

Northern Hemisphere controls on tropical Southeast African climate during the past 60,000 years

The processes that control climate in the tropics are poorly understood. We applied compound-specific hydrogen isotopes (D) and the TEX86 (tetraether index of 86 carbon atoms) temperature proxy to sediment cores from Lake Tanganyika to independently reconstruct precipitation and temperature variations during the past 60,000 years. Tanganyika temperatures follow Northern …

Global warming, elevational range shifts, and lowland biotic attrition in the wet tropics

Many studies suggest that global warming is driving species ranges poleward and toward higher elevations at temperate latitudes, but evidence for range shifts is scarce for the tropics, where the shallow latitudinal temperature gradient makes upslope shifts more likely than poleward shifts. Based on new data for plants and insects …

Madrid 1995: Diagnosing climate change

John Houghton chaired the tense IPCC meeting without which there would be no Kyoto Protocol. Here he recalls how science won the day.

90,000-year-old data - Warming, CO2 and ocean currents linked

Washington, Scientists have presented new data from their analysis of ice core samples and ocean deposits dating as far back as 90,000 years ago and have suggested that warming, carbon dioxide levels and ocean currents are tightly inter-related. These findings provide scientists with more data and insights into how these …

Atmospheric CO2 and climate on millennial time scales during the last glacial period

Reconstructions of ancient atmospheric carbon dioxide (CO2) variations help us better understand how the global carbon cycle and climate are linked. We compared CO2 variations on millennial time scales between 20,000 and 90,000 years ago with an Antarctic temperature proxy and records of abrupt climate change in the Northern Hemisphere. …

A chronology of paleozoic sea-level changes

Sea levels have been determined for most of the Paleozoic Era (542 to 251 million years ago), but an integrated history of sea levels has remained unrealized. We reconstructed a history of sea-level fluctuations for the entire Paleozoic by using stratigraphic sections from pericratonic and cratonic basins. Evaluation of the …

From ocean to stratosphere

Rising tropical sea surface temperatures alter atmospheric dynamics at heights of 16 kilometers or more.

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