Response to the Letter to the Editor Regarding Our Viewpoint 'sequestering Soil Organic Carbon: A Nitrogen Dilemma'

摘要

We welcome the response by Soussana et al.1 to our viewpoint article; it is important to have a broad discussion within the scientific community on the feasibility and nature of the 4p1000 goal. In particular, we welcome the explicit acknowledgment that the 4p1000 goal should be recast as " aspirational", rather than actually achievable in a quantitative sense, as originally stated. Although this may be an increasingly common realization within the scientific community, it is certainly not common knowledge within the policy-making community and appears to represent a shift from the wording at the official 4pl000 site (http://4pl000.org). We suggest that the Web site wording be made clearer.