Humans are causing mass extinction at a rate not seen since the last major extinction event
Humans are causing mass extinction at a rate not seen since the last major extinction event Salon 1 hr ago © Provided by Salon Bleached coral Bleached coral on the Great Barrier Reef outside Cairns Australia during a mass bleaching event, thought to have been caused by heat stress due to warmer water temperatures as a result of global climate change. Getty Images/Brett Monroe Garner Roughly 66 million years ago, an asteroid or comet struck the planet and wiped out three-quarters of every animal and plant species alive. Known as the Cretaceous–Paleogene ex...
Source: msn.com