The Global Humanitarian Forum also estimated that 325 million people are seriously affected by climate change — a number it says will double by 2030, as more people are hit by natural disasters or suffer environmental degradation caused by climate change.

"Climate change is a silent human crisis," Annan said in a statement. "Yet it is the greatest emerging humanitarian challenge of our time."

That sounds serious. Did the report mention that cutting back on meat or going vegan was the only effective way to avoid this disaster scenario?