Yale Environment 360: Globally, 2015 is expected to be warmer than 2014. The United Kingdoms Met Office says that 2015 will be the year when average world temperatures rise more than 1 degree C (1.8 F) above pre-industrial levels. That is halfway to the 2 degrees C temperature increase threshold that scientists say could dangerously destabilize the planets climate system. The Met office reported that from January to September this year, global temperatures hit 1.02 degrees C above pre-industrial averages and that temperatures...