Scientists have documented five major mass extinction events in Earth's history, during which at least three-quarters of life went extinct. But with humans clearing habitats, exterminating species and ...

(CNN) — Humans have wiped out more than 100 species — with many more on the brink or experiencing large declines in population. Some scientists have argued that we have entered a “sixth mass ...

A report was released by the Intergovernmental Panel on Climate Change (IPCC), specifically looking at the impacts of climate change. It makes for grim reading. The report tells us that climate change ...

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Extinction is a natural byproduct of life and evolution, but an alarming number of species have entered the dustbin of history thanks to human activity — which is anything but natural. "The solution ...