环境与灾害是当今世界注目的两大问题。环境的改变与恶化可以导致自然灾害;自然灾害的发生也可以使环境恶化,两者是密切相关的,以致在两者之间很难找到一个很明确的界限。自从1896年Arrhenius最早提出“温室效应”说以来,这一观点愈来愈被人们所重视,几乎成了地球現代环境问题的核心。许多科学家认为,由于CO_2等气体的排放所 Environment and disasters are the two major problems in today’s world. Environmental change and deterioration can lead to natural disasters; natural disasters can also make the environment worse, and the two are so closely linked that it is hard to find a clear boundary between the two. Since Arrhenius first proposed the concept of “greenhouse effect” in 1896, this viewpoint has been paid more and more attention and has almost become the core of the modern environmental problems of the earth. Many scientists believe that due to CO 2 and other gases emissions