Last month was the hottest May on record and marked the 13th consecutive month to break global temperature records, according to the National Oceanic and Atmospheric Administration.
News of the continued record-breaking temperatures came the same week that President Obama used Yosemite National Park as a backdrop to warn of the dangers of climate change,
"Make no mistake, climate change is no longer a threat, it's a reality," Obama said, stressing the need for action. "On this issue, unlike a lot of issues, there's such a thing as being too late."
Read more from ABCNews.com.
May Breaks Heat Record for 13th Consecutive Month