在华盛顿特区，为国会供暖的发电机产生的二氧化碳比其他任何设备都多。
The power plant that heats Congress produces more carbon dioxide than any other facility in Washington, DC.
耕作还会将土壤中的二氧化碳释放到大气中，而免耕能够保持住土壤中的碳，并且避免机械设备释放吸热气体。
Tilling also releases carbon dioxide from the soil into the atmosphere. No-till keeps carbon in the soil and avoids the release of heat-trapping gases from motorized equipment.
环保署使用这些设备每年排放25，000吨的二氧化碳。
The EPA will start with facilities emitting more than 25, 000 tonnes of carbon dioxide a year.
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