Science ❯ Environmental Science

Atmospheric Chemistry

Pollutants Chemical Reactions Greenhouse Gas Emissions Greenhouse Gas Effects Ozone Formation Greenhouse Gas Concentrations Greenhouse Gases Ozone Chemistry Volatile Organic Compounds Methane Emissions

Science Study: COVID Lockdowns Weakened Methane Sink, Fueling Early‑2020s Surge

The authors warn that cleaner air policies that reduce NOx can slow methane removal unless direct methane emissions are cut more aggressively.

Study Finds Ozone-Saving Refrigerants Have Tripled Global TFA Deposition Since 2000

Stuttgart Prosecutors Open Probe Into Suspected SF6 Emissions From Bad Wimpfen Plant

New Study Urges 'Design for Non‑Demise' to Curb Ozone‑Harming Satellite Reentries

CREA Finds Secondary Ammonium Sulfate Drives Up to 42% of India’s PM2.5, One-Third in Delhi

Global Study Finds Rising Hydrogen Amplifies Methane and Adds to Warming

Solvay Faces Criminal Complaint as Regulators Enforce SF6 Orders at Bad Wimpfen

Perseverance Confirms Tiny Lightning in Martian Dust Devils and Storm Fronts

German Regulators Target Suspected SF6 Hotspot Near Heilbronn After Study Estimates 30 Tons a Year

Antarctic Ozone Hole Closes Early, Smallest in Five Years, Copernicus Says

Single-Camera Hyperspectral Method Maps Blue Aurora Peak at 200 Kilometers

Columbia Study Finds Sun-Dimming Geoengineering Faces Severe Real-World Limits

WMO Confirms 2024 CO2 Hit 423.9 ppm With Largest Annual Rise Since Measurements Began

UN Weather Agency: 2024 Hit Record Greenhouse Gas Levels With Biggest CO2 Jump Since 1957

CPCB Tells NGT NCR Is Worst for Ground-Level Ozone as Mumbai and Pune Emerge as Hotspots

Nature Study Ties 2023 Canada Wildfire Smoke to About 82,000 Premature Deaths Worldwide

Peer-Reviewed Study Ties Tijuana River to Toxic Air in San Diego’s South Bay

Preliminary Texas Pilot Study Links Heat Waves to Ozone Spikes and Acid-Rich Nanoparticles

Summer Ozone Exceedances Persist in India's Megacities as City Trends Diverge

Penguin Guano Found to Influence Antarctic Climate Through Cloud Formation