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Published: Tuesday 13 August, 2013

shop wear shop wear ´╗┐Earthworm Invaders Up Soil Greenhouse Gases

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As Charles Darwin knew, earthworms enrich the soil. But they also increase greenhouse gas emissions. Thats according to a metaanalysis in the jou shop wear rnal Nature Climate Change. Ingrid M. Lubbers et al, Greenhousegas emissions from soils increased by earthworms

Soil scientists and biologists reviewed 57 studies to see how affected the soil from a climate change perspective. The issue is su shop wear bstantive: nearly a fifth of global carbon dioxide emissions come from soil. And earthworms are on the move, for the first time in tens of thousands of years after being brought over by European colonists.

All that soil digestion in the guts of worms means more CO2 and more emanating from the dirt. The presence of earthworms increased N2O emissions by more than 40 percent. And laughing gas is also a potent greenhouse gas.

Worms also upped soil CO2 emissions, though it remains unclear whether this is a shortterm effect likely to be balanced out by all the carbon that earthworms bury over the longer term. But that doesnt mean that earthworms dont play an important part in shop wear the history of the world, just as Darwin suggested, especially as the climate changes. shop wear