Humans have completely destabilized land animal diversity

2019-3-2 12:00

Species living on land make up 85 percent to 95 percent of all biodiversity on Earth today. This is especially impressive when we consider that the continents cover only 30 percent of our planet’s surface area.

And that most land species are descendants of a small number of pioneering groups that invaded the land about 400m years ago. Surprisingly, though, scientists strongly disagree about when land biodiversity reached modern levels. Is what we see today typical of the last several tens, or even hundreds, of millions of years? Or has diversity been increasing exponentially, with substantially more species alive today than ever…

This story continues at The Next Web

.

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Источник: thenextweb.com

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On Radical Markets

Recently I had the fortune to have received an advance copy of Eric Posner and Glen Weyl’s new book, Radical Markets, which could be best described as an interesting new way of looking at the subject that is sometimes called “political economy” - tackling the big questions of how markets and politics and society intersect.

2018-7-21 04:03


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