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No let up in greenhouse gas rise | No let up in greenhouse gas rise |
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Concentrations of greenhouse gases in the atmosphere rose to yet another high in 2010, according to the UN's weather agency. | Concentrations of greenhouse gases in the atmosphere rose to yet another high in 2010, according to the 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. | 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. | That exceeds the average for the past decade of 2.0 parts per million, the World Meteorological Organization says. |
The latest round of UN climate talks begin in South Africa in two weeks. | The latest round of UN climate talks begin in South Africa in two weeks. |
"The atmospheric burden of greenhouse gases due to human activities has yet again reached record levels since pre-industrial time," said World Meteorological Organization Secretary-General Michel Jarraud. | |
Concentrations of CO2 reached 389 parts per million in 2010 - the highest such concentrations since the start of the industrial era in 1750. | Concentrations of CO2 reached 389 parts per million in 2010 - the highest such concentrations since the start of the industrial era in 1750. |
CO2 is the greenhouse gas of greatest concern to policy makers looking to stem human-induced climate change. | CO2 is the greenhouse gas of greatest concern to policy makers looking to stem human-induced climate change. |
The WMO said levels of methane - considered the second most important greenhouse gas - had risen after a period of relative stabilisation from 1999 to 2006. | The WMO said levels of methane - considered the second most important greenhouse gas - had risen after a period of relative stabilisation from 1999 to 2006. |
This could be due to the thawing of the Northern permafrost and increased emissions from tropical wetlands. | This could be due to the thawing of the Northern permafrost and increased emissions from tropical wetlands. |
Nitrous oxide, emitted into the atmosphere from natural and man-made sources, including biomass burning and fertiliser use, was 323.2 parts per billion in 2010 - 20%higher than in the pre-industrial era. | Nitrous oxide, emitted into the atmosphere from natural and man-made sources, including biomass burning and fertiliser use, was 323.2 parts per billion in 2010 - 20%higher than in the pre-industrial era. |
The WMO numbers follow the recent release of data from the US Oak Ridge National Laboratory, showing a huge surge in carbon dioxide emissions from 2009 to 2010. | The WMO numbers follow the recent release of data from the US Oak Ridge National Laboratory, showing a huge surge in carbon dioxide emissions from 2009 to 2010. |
The climate talks in Durban, South Africa, run from 28 November to 9 December and are likely to test global resolve to tackle greenhouse emissions. | The climate talks in Durban, South Africa, run from 28 November to 9 December and are likely to test global resolve to tackle greenhouse emissions. |