WASHINGTON — President Obama's science adviser said yesterday the United States is considering extreme measures to defeat global warming — such as shooting pollutants miles above the Earth to block the sun's rays.
John Holdren said the bizarre step — described by fellow scientists as creating an artificial volcano in the sky — would be used only as a last resort.
Obama Adviser: I Want to Block Sun
WASHINGTON — President Obama’s science adviser said yesterday the United States is considering extreme measures to defeat global warming — such as shooting pollutants miles above the Earth to block the sun’s rays.
John Holdren said the bizarre step — described by fellow scientists as creating an artificial volcano in the sky — would be used only as a last resort.