Pest-resistant Bt cotton is already grown on an industrial scale in China. Bt rice and phytase maize — which eliminates the need to feed extra phosphate to poultry and pigs — will now follow suit within 3–5 years, predicted Huang Dafang, a researcher at the Chinese Academy of Agricultural Sciences' Biotechnology Research Institute (see GM corn 'improves animal feed, cuts pollution').
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This costs about a third less than desalination, and cuts pollution.
此举比脱盐减少了三分之一的成本，同时能降低污染。
At the same time, the use of robotics reduces pollution and actively cuts emissions.
与此同时，机器人的使用减少了污染，而且极大地减少排放量。
Greens have long lobbied for cycle paths on the grounds that moving people out of cars cuts air pollution.
环保主义者基于人们不开汽车可以减少空气污染的观点，很早就在游说要建设自行车道。
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