According to the two leading trackers of global temperatures, May of this year was the hottest May ever recorded. While the data is preliminary because China's data has yet to be accounted for, here's how EarthSky broke it down:

NASA data show that May 2014 had an average global temperature that was 1.38 degrees Fahrenheit above the long-term average. The Japanese Meteorological Agency’s separate analysis also found both May and the meteorological spring months of March, April and May to be the warmest on record.

Across the country, temperatures (except, oddly, in the Greater Texas region) registered either "near average" or "above average," according to the National Climatic Data Center:

Many climate prognosticators are anticipating that this will be the hottest year on record when it's all said and done.

Meanwhile, in Washington, D.C., four former heads of Environmental Protection Agency — all of whom served under Republican presidents — addressed Congress today and implored them to act on global warming. William Ruckelshaus, who served under both Nixon and Reagan, compared climate change to similar environmental concerns like industrial pollution, dangerous pesticides, or water contamination.

Inherent in all of these problems was uncertain science and powerful economic interests resisting controls. The same is true of climate change." 

The only difference is that there was wide public support for handling these problems. Polls continue to show that climate change has yet to break into the upper echelon of the important issues.