Climate: Hope lives

Climate change could be described as a "tragedy of the commons." That is, one where a shared resource, such as the planet's atmosphere, gets degraded because everyone has an incentive to put immediate self-interest above what's good for all.

- 

Seen this way, a pact among all countries to contain carbon emissions has always been a tough ask. That the 2015 UN climate huddle in Paris produced an agreement was almost miraculous, even if we now find that its 1.5° Celsius cap on global warming was an unrealistic goal. On current tr