To help combat the effects of global warming, scientists are toying with an innovative idea to shield our planet from the sun with a spaceborne "umbrella" of sorts.
"In Hawaii, many use an umbrella to block the sunlight as they walk about during the day," István Szapudi, an astronomer at the University of Hawaii Institute of Astronomy, said in a statement. "I was thinking, could we do the same for Earth and thereby mitigate the impending catastrophe of climate change?"
