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.
Ship traffic in shallow areas, such as ports, can trigger large methane emissions by just moving through the water. Researchers in a study, led by Chalmers University of Technology in Sweden, observed 20 times higher methane ...
Earth Sciences
Jul 3, 2025
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Carbon credits are used by companies as a way to offset their greenhouse gas emissions (GHGs) by investing in projects that reduce or sequester carbon. These carbon offsets are used in many industries where the ecological ...
Environment
Jul 2, 2025
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A new analysis suggests that reductions in U.S. military spending could result in significant decreases in energy consumption by the Department of Defense, leading to reduced greenhouse gas emissions. Ryan Thombs of Penn ...
Environment
Jul 2, 2025
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Cities have a central role to play tackling climate change. They contribute 67%–72% of the greenhouse gas emissions which are heating up the planet.
Environment
Jun 30, 2025
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The climate science community has long known about super pollutants. The Intergovernmental Panel on Climate Change (IPCC) has reported on their warming potential for years. But only recently has momentum built around the ...
Environment
Jun 27, 2025
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Coal-fired power plants are among the largest contributors to global CO2 emissions. However, accurately measuring their emissions has been challenging due to outdated inventories and the technological limitations of satellite-based ...
Environment
Jun 26, 2025
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A team of scientists from the Institute of Applied Ecology of the Chinese Academy of Sciences has developed a novel method to more accurately quantify greenhouse gas emissions from large-scale greenhouse cultivation, addressing ...
Biotechnology
Jun 26, 2025
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Trees are essential to life on Earth. They support ecosystems, store carbon, provide clean water, improve our health, and offer countless benefits to people and nature. In a new study, researchers modeled the future climate ...
Plants & Animals
Jun 24, 2025
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Conservation, restoration, and ecosystem management can reduce greenhouse gas emissions or increase carbon dioxide sequestration, in what are frequently referred to as "natural climate solutions." Such natural climate solutions ...
Environment
Jun 24, 2025
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Pressures such as population growth, urbanization, and land degradation are straining the global agrifood system, the network connecting all steps of the food supply chain from growing crops in the field to waste elimination ...
Ecology
Jun 23, 2025
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