The greenhouse effect is the radiative process by which certain atmospheric gases (notably water vapor, carbon dioxide, methane, nitrous oxide, and ozone) absorb and re-emit longwave (infrared) radiation emitted by Earth’s surface and lower atmosphere, thereby reducing the net outgoing longwave flux to space and warming the lower troposphere and surface. It arises from molecular vibrational and rotational absorption bands that are transparent to most incoming shortwave solar radiation but partially opaque to outgoing terrestrial radiation. In climate science, the greenhouse effect is quantified via radiative forcing, feedbacks (e.g., water vapor and cloud feedbacks), and its role in establishing Earth’s energy balance and global mean temperature.
A 66 million-year-old mystery behind how our planet transformed from a tropical greenhouse to the ice-capped world of today has been unraveled by scientists. Their new study has revealed that Earth's massive drop in temperature ...
Earth Sciences
Jan 22, 2026
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Germany's greenhouse gas emission cuts slowed sharply in 2025 as the North Sea experienced its warmest year on record, piling pressure Wednesday on the conservative-led government to boost climate protection efforts.
Environment
Jan 7, 2026
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Researchers at The Education University of Hong Kong (EdUHK) have contributed to a study revealing that conventional theories on the structure of black carbon particles—such as those emitted by wildfires—may have significantly ...
Environment
Dec 29, 2025
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Rising global emissions of hydrogen over the past three decades have added to the planet's warming temperatures and amplified the impact of methane, one of the most potent greenhouse gases, according to new research published ...
Earth Sciences
Dec 17, 2025
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Across the western U.S., wildfires and the dangerous smoke that results have increased in frequency and intensity since the 1990s—that much is clear. Surprisingly less clear are the exact reasons why: While greenhouse gas-related ...
Earth Sciences
Dec 16, 2025
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Ten years ago, on 12 December 2015, the Paris Climate Agreement was signed at the UN Climate Conference. In order to limit global warming to well below two degrees, only a certain amount of CO2 may be emitted worldwide. While ...
Environment
Dec 10, 2025
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Around 56 million years ago, Earth suddenly got much hotter. Over about 5,000 years, the amount of carbon in the atmosphere drastically increased and global temperatures shot up by some 6°C.
Ecology
Dec 1, 2025
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54
Despite rapid progress in clean energy and electric vehicles, the world is still warming faster than ever. The good news is that we already have powerful ways to reduce the warming rate—if governments look beyond carbon dioxide ...
Environment
Nov 19, 2025
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New research has revealed for the first time the full extent of how "Artificial Light At Night" (ALAN) is increasing carbon released by plants and animals across continents—without any increase in the carbon they absorb. ...
Earth Sciences
Nov 12, 2025
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The Atlantic Meridional Overturning Circulation (AMOC), an ocean current system that transports heat from the tropics to the North Atlantic, plays a vital role in regulating the global climate. Most climate models project ...
Earth Sciences
Nov 11, 2025
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