Officials warn historic heatwave in North American west is just the beginning | First Thing

Extreme weather is the start of a permanent emergency' caused by climate breakdown, Americans have been told. Plus, the man who made a $1bn business from celebrity shoutouts

Good morning.

As a historic heatwave, extreme drought and wildfires engulf much of the North American west, experts and officials have warned this is just the beginning of a lasting crisis caused by climate breakdown.