Page 26: Research news on greenhouse gases

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.

US moves to scrap emissions reporting by polluters

The United States moved on Friday to dismantle a "burdensome" federal program that tracks greenhouse gas emissions across the US economy, the latest step by President Donald Trump's administration to undercut efforts against ...

Study warns US emissions progress may flatline

After years of steady decline, US greenhouse gas emissions risk leveling off under Trump administration policies that promote fossil fuels and restrict renewables, according to an analysis released Wednesday.

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