Responsible for ¼ of human-made greenhouse effect
About 30 times more powerful than CO₂ (GWP-100)
Large emissions from fossil fuel industry, landfills, livestock
Small particles in the atmosphere
Largest unknown factor in climate change
Strong impact on air quality
Reactions with atmospheric gases contribute to global warming
Trace gas to calculate CO₂ emissions from forest fires
Most important human-made greenhouse gas
Hard to monitor emissions because of long lifetime
TROPOMI aboard Sentinel-5p can be used to detect large methane emission plumes everywhere around the world. These plumes are automatically detected using the machine-learning setup described in Schuit et al. (2023, ACP). The weekly world maps show approximate source locations based on single TROPOMI plumes as well as initial source rate estimates based on an automated mass balance method.
The Earth programme is headed by dr. Aaldert van Amerongen. It consists of the Earth Science Group attached to the program and instrument specialists assigned to the program.
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