Economic Cost of Global Warming

A new report from Tufts University puts an economic price tag on global warming for the first time.

Tufts economist and co-author of the report, Frank Ackerman, says that by the year 2100, climate change could seriously set back the world's economy, up to " 20 trillion dollars per year, numbers that are just fantastically large."

The cost would come with a world temperature rise of 3.5 degrees celsius.