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Health Risks

Severe Storms Erupt Across Central U.S. This Evening With Tornado Risk Concentrated Near and South of I-80

Forecasters stress the threat is highly conditional on where the warm front sets up.

Western U.S. Heat Builds Toward Records as Brief Warm Spell Spreads East

Health and Environmental Groups Sue EPA Over Repeal of Greenhouse-Gas ‘Endangerment Finding’

Code Orange Air Quality Alerts Remain in Effect Across Southeastern and Central Pennsylvania

Official Alerts Sweep the Americas as Winter Storm and Cold Front Drive Hazardous Weather

Mexico City Extends Phase I Ozone Contingency Into Feb. 14

Trump Repeals EPA Endangerment Finding, Axes Federal Greenhouse-Gas Vehicle Standards

Delhi Air Quality Eases to 'Poor' After Midweek Spike as Warm, Hazy Mornings Persist

Mexico City Keeps Normal Wednesday ‘Hoy No Circula’ as Air Quality Deteriorates and Marches Disrupt Routes

Delhi-NCR Enforces GRAP Stage IV as AQI Turns Severe and Fog Disrupts Travel

Delhi Air Quality Hits 'Hazardous' as Authorities Enforce Stage IV Emergency Curbs

Delhi Unveils Four-Year Tech-Led Plan to Cut PM2.5

CAMe Lifts Ozone Contingency in Valley of Mexico After Air Quality Rebounds

Delhi’s Air Quality Turns ‘Severe’ as Fog Triggers Flight Delays and Prolonged Pollution Forecast

Delhi High Court Seeks Centre’s Reply on Plea to Cut GST on Air Purifiers

Dense Fog, Toxic Air Snarl Delhi-NCR Travel as GRAP Stage-IV Takes Effect

Delhi’s ‘No PUC, No Fuel’ Drive Bites as India Balances Diplomacy and Defence

Delhi Tightens GRAP Curbs, Fuel Ban for No‑PUC Vehicles Starts Thursday

Smog Locks Delhi-NCR in GRAP Stage-IV as AQI Stays Severe and Flights Face Disruptions

Delhi High Court Rejects Scientist’s Plea for Mandatory Work-From-Home Under GRAP