Why are extreme weather events on the rise? (part one)

The Guardian’s global environment editor, Jonathan Watts, speaks to Shivani Dave about extreme weather events – including the extreme heat recently recorded in the US and Canada. In the first of two parts, we hear how extreme heat comes about and why extreme weather events such as floods and monsoons look set to become more likely and even more extreme. Help support our independent journalism at theguardian.com/sciencepod