Causes and consequences of Eastern Australia's 2019-20 season of mega-fires: A broader perspective.

Climates-especially seasonal and long-term droughts-and fuel loads combine to determine risks of wildfires across much of Australia. Here we illustrate how long-term accumulations of fuel combined with a serious drought to drive the behaviour and extent of recent fires in South-eastern Australia. This article is a commentary on Nolan et al. 26, 1039-1041.