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人口问题、资源问题、环境问题以及经济社会发展问题,是当今世界人们日益关注的四大问题。其中环境问题是制约经济发展、影响人类生活的严重问题。环境问题主要指由于人类生产和生活所引起的环境破坏和污染,其实质是经济发展与环境保护的矛盾表现,是人与自然关系的失调。目前,全球面临的生态、环境问题主要有:温室效应温室效应是指二氧化碳、一氧化二氮、甲烷、氟利昂高温室气体大量排向大气层,使全球气温升高的现象。目前,全球每年向大气中排放二氧化碳大约为230亿吨。
Population, resource, environmental and economic and social development are the four major issues that the world today is paying increasing attention to. Among them, environmental problems are serious problems that restrict economic development and affect human life. Environmental problems mainly refer to the environmental destruction and pollution caused by human beings’ production and life. Their essence is the contradictory manifestation of economic development and environmental protection and the imbalance of the relationship between man and nature. At present, the major ecological and environmental problems facing the world are as follows: Greenhouse effect The greenhouse effect refers to the phenomenon that carbon dioxide, nitrous oxide, methane and freon high-temperature greenhouse gas are largely discharged into the atmosphere, causing the global temperature to rise. At present, about 230 billion tons of carbon dioxide are released to the atmosphere globally every year.