12/15/2010 3:05:54 PM
Nature Article: Cutting Emissions Can Save Polar Bears
PBI's senior scientist, Dr. Steven C. Amstrup, is the lead author of a paper published in the prestigious journal, Nature, today. The article unveils promising new research that shows that we can prevent the extinction of polar bears through significant reductions in greenhouse gas emissions.
"There's a widely held perception that nothing can be done to help polar bears and the Arctic ecosystem," says Amstrup. "Our findings show this isn't true."
Amstrup and his team used modeling to address the key question of whether there's a tipping point beyond which Arctic sea ice can't recover. They found that an irreversible tipping point doesn't exist. Instead, lower greenhouse gas emissions lead to reduced temperatures and improvements in Arctic sea ice.
"Our findings offer a message of hope," says Amstrup, "but they also underscore the urgent need for reductions in greenhouse gas emissions."