Bill Chameides promotes climate fraud: Trace amounts of CO2 are allegedly killing our forests

...To a very high degree of certainty we know that:

* the globe is warming,
* glaciers are melting,
* forests are dying, and
* the ocean is acidifying.

Less certain but no less worrisome, storms may be becoming more severe and droughts appear to be lasting longer and occurring more frequently.

With a high degree of certainty these trends can be largely attributed to our own emissions of greenhouse gases.

Video: Jim Hansen [Peddles Climate Fraud: "Scientifically, it's become crystal clear"]

Speaking in San Francisco's Herbst Theater recently for City Arts and Lectures, Jim Hansen talks of the public perception of global warming, how the science has progressed, and the surprising rapidity of a changing climate.