"We're not talking about something catastrophic, but we could see a much bigger response in terms of sea level from the
…Scientists have yet to agree on how much melting of the
"We've never seen an ice sheet disappear before, but here we have a record," says Carlson of the new study that combined a powerful computer model with marine and terrestrial records to provide a snapshot of how fast ice sheets can melt and raise sea level in a warmer world.
…According to the new study, rising sea levels up to a third of an inch per year or 1 to 2 feet over the course of a century are possible. Even slight rises in global sea level are problematic as a significant percentage of the world's human population — hundreds of millions of people — lives in areas that can be affected by rising seas. "For planning purposes, we should see the IPCC projections as conservative," Carlson says. "We think this is a very low estimate of what the
Aerial photograph of an island just off the coast of