Is climate change speeding up? A new study by James Hansen, perhaps the world?s foremost climate scientist, and 16 co-authors suggests that ice shelves and glaciers in Greenland and Antarctica may be melting 10 times faster than previous consensus estimates suggested. That would lead to a rise in sea levels of 10 feet in as little as 50 years. To understand the potential new risks, Erwann Michel-Kerjan, executive director of Wharton?s Risk Management and Decision Processes Center, discusses this new study. Read More?at ?www.agenda.weforum.org