Water Is Our Next Great Environmental Challenge.

Optimists Are Usually Wrong. But All The Great Change In History, Positive Change, Was Done By Optimists.

When Widely Followed Public Figures Feel Free To Say Anything, Without Any Fact-checking, It Becomes Impossible For A Democracy To Think Intelligently About Big Issues.

C'mon Kids! Wake Up And Smell The Co2! Take Over Your Administration Building, Occupy Your University President's Office, Or Storm In On The Next Meeting Of Your College's Board Of Trustees Until They Agree To Make Your School Carbon Neutral.

I Don't Think We Replaced The Soviet Union With Al Qaida. I Think We Replaced, We Should Have, Soviet Union With The Merger Of Globalization And The It Revolution. I Think It's That. That Is The Real Challenge That We Face Today. Unlike The Soviet Union, It Has No Face, It Has No Missiles, But It Is Something That Challenges Every Job, Every City And Every Community.

I Don't Think The Arab Spring Had Much To Do With Energy. I Think It Was Just The Opposite, In Fact. I Think The Arab Spring Happened Because Particularly Young People Knew They Were Living In A Context Where They Could Not Realize Their Full Potential, That They Are Being Kept Down By Their Own Governments.