Some propose storing the CO2 in coal mines or liquid storage in the ocean.
一些人建议将二氧化碳储存在煤矿中，或以液体状态储存在海洋中。
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The two gases would be separated, with the CO2 sent to the deep ocean for permanent storage and the methane piped to the surface for use as a renewable heating and cooking fuel.
"If in fact productivity is going down so much, the implication would be that less carbon capture and storage is happening in the open ocean," he said.