The UN proposes a way to delay dangerous warming by decades.

If you’ve read this recent U.S. National Academy of Sciences report, you’d have an idea of how little time we may have to avoid passing the 2-degree Celsius (3.6-degree Fahrenheit) warming threshold set by international groups (see here [pdf] and here) to avoid dangerous climate change.

Our best estimate is that we’ll cross that 2-degree threshold if greenhouse gases like carbon dioxide (CO2) exceed 450 parts per million. Without aggressive emissions-slashing measures, that could happen in 30 years or less. Given the current political scene, one might conclude it’s hopeless.

Not so fast, says a new report by