Photo Credit: Peter Brown

Contrary to what people might think, North American forests are burning less, not more, according to new data. A study published in Nature Communications reveals how this trend may be causing more aggressive fires… Using a fire scar dataset known as the North American Tree-Ring Fire Scar Network, which originated from work done at the University of Arizona Laboratory of Tree-Ring Research, researchers were able to compile a clearer picture of historical fire geography and frequency. This allowed them to compare recent seemingly extreme wildfire events – such as the California August Complex Fire and the Arizona Bighorn Fire of 2020 – with events from the past… The fire scar data used in the study was collected from more than 1,800 sites across North America, spanning diverse forest types.