Greenhouse gases reach record high


Greenhouse gas levels reached record highs in 2005 and will continue to build in the atmosphere in the absence of drastic emission cuts, the UN has said.
Kyoto targets are not enough to level off, let alone turn around the rise in greenhouse gases, the WMO has said
As international delegates review progress Kyoto in Nairobi, the Annual Greenhouse gas Bulletin revealed a rise in overall concentrations despite some progress on Kyoto targets.
Even if all Kyoto targets are met, the resulting 5% cut in developing countries' emissions from 1990 levels by 2008-12 would not be enough to put the breaks on the rise in heat-trapping gases, the WMO has said.
While the CO2 build-up is largely due to humans burning fossil fuels, only 30% of the nitrous oxide increase is caused by human activities. Fuel combustion, biomass burning and fertiliser use all produce N2O. Around 60% of methane emissions come from human activities like fossil fuel combustion, rice agriculture, livestock farming and biomass burning.
Although CO2 is the most important greenhouse gas it is only responsible for 62% of the greenhouse effect observed to date.

(Resource : http://www.edie.net/news/news_story.asp?id=12229&channel=0)

Kim Jin ah