Greenhouse gases are atmospheric constituents that absorb and emit infrared radiation, thereby contributing to the greenhouse effect and Earth’s radiative energy balance. Major greenhouse gases include carbon dioxide (CO₂), methane (CH₄), nitrous oxide (N₂O), ozone (O₃), and various halogenated compounds, along with water vapour (H₂O) as a feedback agent. Their radiative forcing depends on concentration, spectral absorption properties, atmospheric lifetime, and overlap with other absorbers. In climate research, greenhouse gases are quantified via metrics such as global warming potential and effective radiative forcing to assess their contribution to anthropogenic climate change and to inform emissions mitigation strategies.
For the first time, the seasonal peak of carbon dioxide concentrations in the atmosphere exceeded 430 parts per million (ppm) at NOAA's Mauna Loa Observatory on Hawaii, scientists from NOAA and Scripps Institution of Oceanography ...
Environment
Jun 5, 2025
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Approximately 30% of global carbon dioxide (CO2) emissions are removed by terrestrial vegetation through photosynthesis. Researchers affiliated with UNIST have unveiled an innovative artificial intelligence (AI) analysis ...
Environment
Jun 4, 2025
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In March 2022, 14 residents of a four-story apartment building in Silver Spring, Maryland, were hospitalized when a gas leak from a cut pipeline caused a major explosion. Every year in the United States, there are hundreds ...
Environment
Jun 4, 2025
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There was a time when oil and gas companies happily linked themselves to the idea of planet-wide environmental changes. "Each day Humble supplies enough energy to melt 7 million tons of glacier!" boasts the headline from ...
Environment
Jun 2, 2025
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When it comes to carbon emissions, there's no bigger foe than the building and construction sectors, which contribute at least a third of global greenhouse gases.
Earth Sciences
Jun 2, 2025
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Oceans have absorbed the vast majority of the warming caused by burning fossil fuels and shielded societies from the full impact of greenhouse gas emissions.
Environment
Jun 2, 2025
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Researcher Juana M. Delgado is explaining the findings of a scientific report to the UK Parliament. The report, presented last year by the UJI, UV, and IDIAP Jordi Gol, details the situation in Europe and Great Britain.
Environment
May 30, 2025
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New research suggests that the negative effects of the ozone hole on the carbon uptake of the Southern Ocean are reversible, but only if greenhouse gas emissions rapidly decrease.
Earth Sciences
May 16, 2025
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Warming in the Arctic is intensifying methane emissions, contributing to a vicious feedback loop that could accelerate climate change even more, according to a new study published in Nature.
Earth Sciences
May 15, 2025
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It takes a lot of fuel to get an airplane up in the sky and keep it there—which means a lot of emissions. In fact, the airline industry produces more greenhouse gases than many major countries. Most airlines know this isn't ...
Environment
May 15, 2025
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