Graphs show a) Global average wildfire season length (expressed as a standardised anomaly), and b) Total global average area experiencing «long» wildfire seasons (as a % of global vegetated area)-- both from 1979 to 2013. (carbonbrief.org)
The path may be through vegetated areas such as grassy fields or over non-vegetated areas. (rachelebaker.com)
Between 1982 and 2011, 20.5 % of the world's vegetated area got greener, while just 3 % grew browner; the rest showed no change. (rationaloptimist.com)