Magazine article New Internationalist

A Stressed World

Magazine article New Internationalist

A Stressed World

Article excerpt

THERE ARENO MORE WILD PLACES. The era of economic globalization and exploding world trade has combined with climate change, population growth, the widespread pillage of natural resources and the expansion of large-scale agriculture to imperil the bio-diversity of our planet as never before. The loss of pollinators like bees is just one aspect of this loss.

Biologists call it the sixth extinction. There have been five great mass extinctions in the history of the earth including:

* The Permian extinction 250 million years ago wiped out 70 per cent of all land animals and over 90 per cent of sea creatures. The causes are unclear.

* The Cretaceous extinction 65 million years ago saw the dinosaurs go down. Scientists think this was caused, at least in part, by a massive asteroid off Mexico's Yucatan Peninsula, which turned the atmosphere into a blast furnace. More than 70 per cent of the earth's species were lost. It took tens of millions of years to bounce back. …

Search by... Author
Show... All Results Primary Sources Peer-reviewed

Oops!

An unknown error has occurred. Please click the button below to reload the page. If the problem persists, please try again in a little while.