Around the world, rainforests are becoming savanna or farmland, savanna is drying out and turning into desert, and icy tundra is thawing. Indeed, scientific studies have now recorded "regime shifts" ...

Wildfires have long been a facet of California’s ecosystem, as varied forest land covers much of the state and often benefits from some types of fire. Indigenous communities were using controlled ...

A formula can be used to predict what happens when a new species is introduced into an ecosystem -- whether it will establish itself in the community or fail to gain a foothold and die out. When a new ...