Based on satellite data, the NASA map shows how much forest around the world was on fire during the first 10 days of May.
Experts that GlobalPost spoke with believe forest fires are likely now burning at record levels — at least since human beings first began walking the Earth.
No one really knows this for sure. Some nations, such as the United States and Brazil, publish detailed data, while others, such as Congo or Russia, do not.
What scientists are certain about is this: Wildfires are getting worse with climate change, in the United States and much of the world.
[The dots on the NASA map are not to scale — otherwise most of Central America (seen below) would just have burned down]