Tags: Climate Change
More troubling climate news: Greenhouse gases in the atmosphere hit a record high in 2010, according to new data from the World Meteorological Organization, which is UN's weather agency.
Levels of carbon dioxide (CO2) - the major contributor to climate change - rose by 2.3 parts per million between 2009 and 2010.
That exceeds the average for the past decade of 2.0 parts per million, the World Meteorological Organization says.
"The atmospheric burden of greenhouse gases due to human activities has yet again reached record levels since pre-industrial time," said WMO Secretary-General Michel Jarraud.