But there are concerns about the large amounts of water and electricity needed to run them, including from gas-powered generators.
把自己看作不仅是人们及其需求的倡导者，也要成为我们星球的倡导者。
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Advances in organ and computer models are raising the prospect that some animal experiments could be eliminated. But there are still huge hurdles to overcome.
В Финляндии предупредили об опасном шаге ЕС против России09:28
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