A claim made by the UN climate change panel in 2007 that half of the country of the Netherlands was below sea level, is being contested by the country itself.

On Monday, scientists and government officials gather in Valencia, Spain to put together the fourth and last U.N. report on the state of global warming and what it will mean to hundreds of millions of people whose lives are being dramatically altered.

Hundreds of deaths caused by volcanic leaks of carbon dioxide from Cameroon to California are worrying experts seeking ways to bury industrial emissions of the gas as part of an assault on global warming.