Extreme Heat the New Norm

"According to our projections, large areas of the globe are likely to warm up so quickly that, by the middle of this century, even the coolest summers will be hotter than the hottest summers of the past 50 years."
http://news.discovery.com/earth/extreme-heat-the-new-norm.html#mkcpgn=rssnws1

Extreme Heat the New Norm

"Within the next 20 to 60 years, if greenhouse gas levels continue to rise summer temperatures are likely to rise irreversibly around the globe, with the tropics feeling the heat first, and parts of Africa, Asia and the Americas suffering unprecedented summer heat within the next two decades. The middle latitudes, including Europe, China, and the United States, will feel the heat within 60 years."