Editorial

摘要

COP 15 means the Fifteenth Conference of Parties and is the world summit that takes place in Copenhagen in December 2009 in order to discuss the agenda for a replacement of the Kyoto Protocol. More specifically, governments will meet to negotiate a new international treaty and roadmap on measures to control climate change based on globally reduced greenhouse gas (GHG) emissions after 2012.rnIn their fourth assessment report (AR4) the Intergovernmental Panel on Climate Change (IPCC), Working Group III (Mitigation) concluded that total globalrnanthropogenic (human-induced) GHG emissions were approximately 49 giga-tonnes CO_2 equivalents in 2004-2005, including CO_2, CH_4, N_2O and F-gases. The waste sector contributed about 2.5% of global anthropogenic GHG emissions, mainly from landfill and wastewater CH_4 with smaller contributions from wastewater N_2O and the incineration of fossil carbon.