Dr. Richard Alley

Dr. Richard Alley – Geologist & Climate Change Specialist: It is no longer a matter of if, how or how long…it’s real & it’s happening.  The amount of greenhouse gasses within Earth’s atmosphere are increasing at an alarming rate which is causing a continuous and unsustainable rise in the Earth’s climate. This is not alarmist, I’m not... Learn more about your ad choices. Visit megaphone.fm/adchoices