ScienceDaily: A new study published in the journal Global Environmental Change projects that carbon sequestration in European cropland could store between 9 and 38 megatons of carbon dioxide (MtCO2) per year in the soil, or as much as 7% of the annual greenhouse gas emissions from agriculture in the European Union, at a price of carbon of 100 $/tCO2. "However, if strict emission reduction targets are only adopted inside Europe, efforts within the EU to reduce emissions could lead to increased emissions in other...