Canadell Josep G, Raupach Michael R
Global Carbon Project, CSIRO Marine and Atmospheric Research, GPO Box 3023, Canberra, ACT 2601, Australia.
Science. 2008 Jun 13;320(5882):1456-7. doi: 10.1126/science.1155458.
Forests currently absorb billions of tons of CO2 globally every year, an economic subsidy worth hundreds of billions of dollars if an equivalent sink had to be created in other ways. Concerns about the permanency of forest carbon stocks, difficulties in quantifying stock changes, and the threat of environmental and socioeconomic impacts of large-scale reforestation programs have limited the uptake of forestry activities in climate policies. With political will and the involvement of tropical regions, forests can contribute to climate change protection through carbon sequestration as well as offering economic, environmental, and sociocultural benefits. A key opportunity in tropical regions is the reduction of carbon emissions from deforestation and degradation.
目前,全球森林每年吸收数十亿吨二氧化碳,如果必须通过其他方式创建同等规模的碳汇,这将是一笔价值数千亿美元的经济补贴。对森林碳储量持久性的担忧、量化储量变化的困难以及大规模造林计划对环境和社会经济影响的威胁,限制了林业活动在气候政策中的应用。凭借政治意愿以及热带地区的参与,森林可以通过碳固存为气候变化保护做出贡献,并提供经济、环境和社会文化效益。热带地区的一个关键机遇是减少森林砍伐和退化所产生的碳排放。