World News | Sarah Kaplan, The Washington Post | Tuesday November 8, 2016
It doesn't take a very long time to irreversibly change the planet. In just a few dozen millennia - a geologic blink of an eye - three quarters of Earth's living things went extinct 66 million years ago. The cause was probably a massive asteroid impact, possibly accompanied by colossal volcanic eruptions. The consequences of what scientists call th...
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