"They fall all over the Earth, not just Antarctica, but the best places for us to find them are the deserts because they don't get weathered and they don't break down as easily."

VOA: special.2010.07.28

"Because it's happening so quickly, they haven't had time to adapt and change, if you imagine a climate changing over hundreds of thousands of years, bears and other animals would gradually move into other habitats,but because this is going to happen over decades, it will be too fast for them to adapt and look for other food sources,"

VOA: standard.2009.12.13