Several designs are being developed, but they involve variations on the same theme. In each case air is brought into contact with a “sorbent” material, which binds chemically with the carbon dioxide.
2
科学家们同时担心，随着二氧化碳排放量的增加，海洋将会吸收更多的温室气体，进而改变海水的化学性质。
Scientists are also worried that, as carbon dioxide emissions rise, the ocean will absorb greater amounts of the greenhouse gas, shifting the chemistry of seawater.
3
她说道：“这想技术基于水和油的化学性质，它们的特殊性质能将二氧化碳转化成石灰石类物质。”
She said: "This technology is based on the chemistry of oil and water and has the special property of transforming carbon dioxide into a limestone-like substance."
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