The four years with the most billion-dollar disasters have all happened since 2011.
The amount of carbon dioxide in the atmosphere has a strong correlation with rising temperatures.
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.
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.
Global average temperature has already warmed 1°C beyond pre-industrial levels, on its way to 1.5°C without deep emissions cuts.
Just like the past four years, 2018 is on pace to be one of the hottest years globally.