Greenhouse gases come from several sources in the U.S., not just your furnace and you car exhaust.
Greenhouse gases held steady for hundreds of years, but have jumped up since the start of the industrial era.
Sea level rise will threaten hundreds of thousands of homes in the coming decades — and many communities have built a striking number of new homes in the future flood zone.
See how the Halloween extremes and October temperatures are trending in these U.S. cities.
Trees have widespread climate benefits, from lowering cooling costs to reducing our carbon footprint.
See how trees in these cities are improving air quality, reducing flood risks, and offsetting carbon emissions.
Cool, crisp fall nights signal the end to bug, allergy, and growing season. See how fall nightly temperatures are trending in these U.S. cities.
Global average temperature has already warmed 1°C beyond pre-industrial levels, on its way to 1.5°C without deep emissions cuts.