Climate change is lengthening fire seasons across much of the world. This means the potential for wildfires at any time of the year, in both hemispheres, is increasing.
That poses a problem. Australia regularly shares firefighting resources with the United States and Canada. But these agreements rest on the principle that when North America needs these personnel and aircraft, Australia doesn’t, and vice versa. Climate change means this assumption no longer holds.
The devastating Los Angeles wildfires in January, the United States winter, show how this principle is being tested. The US reportedly declined Australia’s public offer of assistance because Australia was in the midst of its traditional summer fire season. Instead, the US sought help from Canada and Mexico.