Christian Science Monitor: The Obama administration may be considering bioengineering to cool the earth. That`s what John Holdren, the president`s new science adviser, told The Associated Press in an interview. Dr. Holdren, a physicist, didn`t say that ideas he put forth for geoengineering — including “shooting pollution particles into the upper atmosphere to reflect the sun`s rays” and artificial trees to remove CO2 from the air — came from Obama. Just that he had discussed them with the …