As for global warming, most Republicans say that there is no such thing, or that if the Earth really is warming it has nothing to do with human activity.
至于全球暖化嘛，大多数共和党人认为完全没有这么一回事，或者认为即使地球真在暖化也完全不是人类活动引起的。
The Earth does not have an inexhaustible supply of resources, so every effort should be made to conserve resources and limit the impact of human activity on the planet.
地球上的资源并不是取之不尽、用之不竭的，所以我们应该尽全力保存资源，限制人类活动对地球的冲击。
Does human activity improve or damage the earth?
人类活动是改善还是破坏了地球？
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