Their explosive power and tons of debris have wreaked havoc on the Earth since the world began.
February 2016 was by far the warmest February, and the most anomalously warm month in the record book.
Hurricane Pali is the earliest ever recorded hurricane in the Central Pacific, a rare winter tropical cyclone that benefited from a strong El Niño.
December has been crazy warm across the East, leading to 10,000 daily heat records compared to 500 cold ones.
Unseasonable heat has much of the U.S. in its grip. Global warming will likely make heat waves more intense.
This year's El Niño looks to rank among the strongest on record, with potential U.S. weather impacts.
California's rain deficit during its record-setting drought is about one year's worth of normal rain.
Winter is when Arctic sea ice reaches its peak extent, but this year it could set a record seasonal low.
A weak El Nino has finally emerged a year after its first signs of forming, but weather impacts will be muted.
The polar vortex is sending cold air to the East again. Research continues into role warming might play.
The melting of Earth's polar ice came into starker relief in 2014, with real implications for sea level rise.
2014 is even more likely to become the warmest year on record, with record cold years a thing of the past.