January 31, 2014
Dear President Obama,
I campaigned for you in the primaries and general election of 2008, write about the economics of climate change, work in the area of energy efficiency and renewable energy, and am a climate activist in Northern California. I am writing you to appeal to your highest ethical values and best understanding of scientific reality to deny approval to the Keystone XL pipeline project as well as deny approval to retrofits and new construction of other cross-border pipelines, such as the Alberta Clipper line which will enable more economical exploitation of the Albertan tar sands oil deposits. The Albertan tar sands were described by the climate scientist James Hansen as the largest “carbon bomb” still untapped by the fossil fuel industry, which if exploited mean “game over” for a climate hospitable to human beings and our civilization.