U.N. Climate-Change Alarms Cast Little Light on Heat

Climate Change and Melting Glaciers Nepal's poor have more pressing problems. 

By BJORN LOMBORG Global warming has captured the attention of politicians around the world. The following article is part of a series leading up to the December United Nations conference in Copenhagen on how ordinary people in different countries view the issue:

2013-09-18 The precautionary principle used to work. It was set out at the 1992 Rio Earth Summit, and stated that complete scientific evidence was not necessarily required in support of action on the most serious environmental threats. Unfortunately, since then, this well-intentioned principle has become a destructive tool, used to support bad policies. 

Bjorn Lomborg he points out that the costs of our climate promises would be higher than the total tax intake of all governments across the world today, far exceeding the benefits of climate change mitigation.