Every year could bring a heat wave if climate change continues

By Megan Rowling BARCELONA (Thomson Reuters Foundation) - Without reductions in planet-warming emissions, blistering heat waves of the strength that now typically occur once every 20 years could happen annually on 60 percent of the Earth's land areas by 2075, scientists have warned. The researchers said a worsening of extreme heat could have potentially deadly effects. "Imagine the hottest day that you can remember and instead of 42 degrees Celsius (107.6 degrees Fahrenheit), it's now 45 degrees