Offenbach (dpa) - Heat waves as last in July have become much more likely due to climate change, according to a study. According to the analysis published by the World Weather Attribution Project, the recent heatwave would have been 1.5 to 3 degrees lower in all measured locations in Europe without climate change. The science project deals with the connection between climate and weather. It's about how much more likely extreme weather events are due to climate change.