a glass ceiling?

Scientists claim they can fight global warming by firing trillions of mirrors into space to deflect the sun’s rays forming a 100,000 square mile “sun shade.”

According to Dr Roger Angel, at the University of Arizona, the trillions of mirrors would have to be fired one million miles above the earth using a huge cannon with a barrel of 0.6 miles across.

Despite the obvious obstacles – including an estimated $350 trillion (244 trillion pound) price tag for the project – Dr Angel is confident of getting the project off the ground.

The Telegraph, 26 Feb 2009