There's no trend in U.S. tornado damage (in fact , 2012 to 2017 was below average) . There's no trend in global droughts. Cold snaps in the U.S. are down but, unexpectedly, so are heatwaves. The bottom line is there's no solid connection between climate change and many major indicators of extreme weather that politicians keep talking about, such as hurricanes, tornadoes, droughts, rainfall and floods, despite Trudeau's claims to the contrary.