Heatwave trends accelerate worldwide Phys.orgHeatwaves have become longer in most of the world since 1950s – study The GuardianHeatwaves increased in frequency and duration since 1950s Daily MailThe world endured 2 extra heatwave days per decade since 1950 – but the worst is yet to come Phys.orgTrend towards worsening heatwaves is accelerating, new research finds Sydney Morning HeraldView Full Coverage on Google News