Global Atmospheric CO2 Levels Hit Record High

The concentration of carbon dioxide in the atmosphere increased at record speed last year to hit a level not seen for more than three million years.

https://www.theguardian.com/environment/2017/oct/30/global-atmospheric-co2-levels-hit-record-high

Forests globally are so degraded that instead of absorbing emissions they now release more carbon annually than all the traffic in the US, say researchers:

https://www.theguardian.com/environment/2017/sep/28/alarm-as-study-reveals-worlds-tropical-forests-are-huge-carbon-emission-source