Nine recipients of the Nobel Peace Prize including the Dahli Lama and Archibishop Desmond Tutu have written a letter to President Obama. They urge him to reject the proposed Keystone XL tar sands oil pipeline which will affect “millions of people whose lives and livelihoods will be affected by construction and operation of the pipeline in Alberta, Montana, South Dakota, Nebraska, Kansas, Oklahoma and Texas” and risks “contaminating the Ogallala Aquifer, the main source of fresh water for the Great Plains.”