EU strategies and policies on soil and waste management to offset greenhouse gas emissions

摘要

Climate change has become an important political priority in the environmental field, and beyond. To revert the increase in the Earth's temperature, developed country parties to the Kyoto Protocol committed to limit their greenhouse gas emissions. The 15 Member States that made up the European Community in 1997 have a combined reduction target of 8% in CO_2-equivalent emissions in the period 2008-2012 compared to 1990. The role of soil, both as a source and a sink for carbon, is particularly important. How can soil organic matter be maintained or increased? There is no single answer, and a broad range of options need to be explored. Among the different measures proposed, the promotion of organic input on arable land (crop residues, cover crops, farm yard manure, compost, sewage sludge) has been mentioned. The challenge is to ensure that organic wastes of good quality are used to increase soil organic matter in carbon depleted soils and that appropriate monitoring is established. On the waste management front, the European Commission intends to produce guidance for Member States on the management of biowaste that will take into account all related environmental issues, including soil aspects. As for monitoring, the European Commission has put forward legislation according to which Member States would have to identify the areas at risk of soil organic matter decline in their national territory. Such legislation should be regarded as a major step forward for Europe, as it would ensure a high level of soil protection across the Community. This development will have the potential to enable the kind of estimation, measurement or modelling of crop or grazing land management needed for accounting under Article 3.4 of the Kyoto Protocol.