BJORN LOMBORG:

It is an indisputable fact that carbon emissions are rising—and faster than most scientists predicted. But many climate-change alarmists seem to claim that all climate change is worse than expected. This ignores that much of the data are actually encouraging. The latest study from the United Nations Intergovernmental Panel on Climate Change found that in the previous 15 years temperatures had risen 0.09 degrees Fahrenheit. The average of all models expected 0.8 degrees. So we’re seeing about 90% less temperature rise than expected.

Facts like this are important because a one-sided focus on worst-case stories is a poor foundation for sound policies. Yes, Arctic sea ice is melting faster than the models expected. But models also predicted that Antarctic sea ice would decrease, yet it is increasing. Yes, sea levels are rising, but the rise is not accelerating—if anything, two recent papers, one by Chinese scientists published in the January 2014 issue of Global and Planetary Change, and the other by U.S. scientists published in the May 2013 issue of Coastal Engineering, have shown a small decline in the rate of sea-level increase.

Seguid leyendo.