Watson included a new factor - how much humans have already altered the landscape - in his analysis.
For example, undisturbed vegetation in an area could help the ecosystem adapt to a changing climate. That would make the region valuable for conservation.
As Watson ran the analysis, he found that the least climate stable regions are present at high latitudes, such as North America and southern Patagonia.
Hit or Miss? Extreme Weather vs. Climate Change
The most climate stable regions are present at low latitudes.
The most degraded landscapes are in western Europe, North America, southern South America, China, India, and south and southeast Asia.
Merging the two lists provides a map of the world that is the best and least suited for conservation.
Image: The map shows the regions best suited for conservation. Dark grey marks regions that are climatically stable and have their vegetation intact. Dark orange marks regions that are climatically stable but don't have vegetation. Dark green marks regions that are not climatically stable and have high levels of intact vegetation. And pale cream marks regions with low climate stability and low levels of vegetation. Credit: Wildlife Conservation Society.