A broad range of agriculture-environment interactions can be organized around the concept of agriculture as a producer and consumer of ecosystem services. Viewed as capital assets, ecosystems embody production technologies that are valuable, complex, and often poorly understood. The quantity and...

I distinguish between reduction offsets and removal offsets, the former generated by a reduction in the rate of greenhouse gas emissions and the latter generated by the removal of greenhouse gases from the atmosphere. I show that only removal offsets make any contribution to mitigating climate...