One of the worst heat waves on record in Australia has led to massive dust storms and wildfires.
These five charts capture the record warm and dry year of 2012 throughout the lower 48 states.
Climate scientist Deke Arndt explains the Climate Extremes Index and the critical information it contains.
Scientist Mike Brewer and meteorologist Dan Satterfield explain the connection between drought and a changing climate.
A World Bank report urges action on climate change as it examines the impacts of a 7.2°F rise in global temperature.
While it's still technically possible that 2012 won't end up as the warmest year on record for the U.S., but it's not likely.
As far as drought-stricken states go, Nebraska is at the top, having seen its driest July-to-Sept. period on record.
A wild weather weekend may be in store for much of the Plains and Midwest, as rain comes with threat of tornadoes.