For most places in the U.S., the hottest year on record has come during the current decade.
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.