Word: arctic
(lookup in dictionary)
(lookup stats)
Dates: during 2010-2019
Sort By: most recent first
(reverse)
...amount of methane being produced, but also some information about emission trends. There has been a steady increase in wetlands methane emissions from 2003 and 2007 - and most of that increase was due to wetlands in the temperate regions north or south of the tropics. Moreover, emissions from Arctic wetlands - they do exist - were increasing fastest of all, up more than 30% between 2003 and 2007. That could be due to overall warming. "Most climate models say the surface is going to warm at higher latitude, and this is going to have serious implications for emissions from wetlands," says Palmer...
...Indeed, many scientists worry that we could reach a tipping point at which warming could begin to melt the Arctic permafrost and unleash masses of buried methane - which would then further warm the atmosphere, releasing more methane and continuing in a dangerous feedback cycle. But if we're going to prevent that from happening, we're going to have to find a way other than reducing methane emissions from wetlands. Global food requirements mean that we can't cut back seriously on rice paddy cultivation, and wetlands are far too important to the environment as groundwater filters and buffers against...