摘要：The overall impetus for this research comes from the concern with global warming and climate change. Although the U.S. did not sign the Kyoto Protocol, a study conducted by London's Carbon Disclosure Project has shown that many U.S. firms are preparing to reduce greenhouse gas emissions. Also, agriculture can help to dampen the pace of warming through sequestering carbon in agricultural plants and land. The purpose of the article is to discover what motivates the implementation of conservation tillage which allows greater carbon sequestration. The survey data (1185 self-report questionnaires, 28 percent response rate) were collected from farmers in a midwestern U.S. state in three types of agro-ecozones. Econometric analysis provided support for the dual-interest approach (metaeconomic) in explaining carbon sequestration. Results showed that farmers, who condition their pursuit of self-interest with shared concerns, are using carbon sequestration technologies more widely. However, the more a farmer prefers to have control over the farming process and financial risks, the less likely he adopts conservation tillage. The proposed recommendations for the environmental and conservation policy makers include: to increase awareness of farmers on the positive facts of sequestration (including both long run private benefits and the "greater good" for humanity); encourage commitment by acknowledging its role; install social sanctions in the background to keep the commitment operant; and provide ways for farmers to donate or sell their carbon offsets at a reduced price to the environmental agencies. This would allow decreasing direct financial costs of governmental programs, increasing the pace of carbon retirement, and ultimately facilitating the formation of an effective carbon emissions trading scheme.
