1、晨背素材 选择性必修第三册 Unit 3 Environmental ProtectionWith moderate greenhouse gases, such as methane and carbon dioxide released into the atmosphere, Earth can sustain life.But comprehensive evidence shows that more heat energy than necessary exists because of burning an increasing volume of fossil fuels.He
2、nce, the warming trend has affected Earths ecology and harmonious development.News reports are frequently broadcast about polar bears, seals and penguins that are starved to death because of the melting ice.Tropical jungles are destroyed, making them less habitable for animals.What human beings cant
3、 tolerate is that garbage is thrown everywhere, such as waterways and basins.Faced with the severe situations, worldwide governments have reformed policies to reduce greenhouse gas emissions and restore the sensitive ecology.Dozens of enterprises have submitted and implemented their conservation reg
4、ulations, saying, “We will immediately carry out the disposal of the waste we produce.” Individuals can also seize every chance to reduce the carbon footprint in the daily life.Although Earth has undergone some ecological chaos, people from all over the world confidently say that those measures can create a sustainable world.
