From space, astronaut observes destruction scars on Earth

CAPE CANAVERAL, Florida: A Canadian astronaut aboard the International Space Station said on Sunday it looks like Earth's ice caps have melted a bit since he was last in orbit 12 years ago.

Bob Thirsk, who is two months into a planned six-month stay aboard the station, said he is mostly in awe when he looks out the window, particularly at the sliver of atmosphere wrapped around the planet.

"It's a very thin veil of atmosphere around the Earth that keeps us alive," Thirsk said during an in-flight news conference. "Most of the time when I look out the window I'm in awe. But there are some effects of the human destruction of the Earth as well."