在过去几个世纪中,一些科学家们一直担心这样一个问题:如果某一天地球出现过热症,人们将用什么方式给它降温呢?一些科学家提出了一些奇思妙想。这些看似“天方夜谭”的建议和设想,属于一个备受争议的领域——“地球工程学”。这一学科顾名思义就是要大规模地改变和重新安排地球的环境,以使其更加适合人类生存的需要。多年来,这些奇思妙想一直 In the past few centuries, some scientists have been worried about the question: If one day the world is overheating, what will people do to cool it? Some scientists put forward some whimsy. These seemingly “fantasy ” proposals and ideas belong to a controversial area - “geoengineering ”. As the name implies, this subject is to change and rearrange the Earth’s environment on a large scale to make it more suitable for the survival of humankind. Over the years, these wonderful ideas have been