环境保护PPT(英文版).ppt

E,nvironmental,P,rotection,E,nvironment,is the,things around,the center of things,The,law,of,Environmental Protection,E,nvironment is:,air,water,land,minerals,forests grasslands,wildlife,(,野生动植物,),aquatic flora and fauna,(,水生动植物,),historical sites,scenic areas,nature reserves,residential areas,What,is happening,on the earth,every second,2.4 Neonates,born,in the world.,extracted,28.6 tons of metal.,produce,1.3 cars.,C,O,2,emissions of,760 tons,worldwide.,Decrease of,0.6 square kilometers forest.,The worlds,top ten,environmental problems,1.,Global warming,-,全球变暖,2.,Ozone,layer depletion-,-,臭氧层破坏,3.,Loss of biodiversity,-,生物多样性减少,4.,The spread of acid rain,-,酸雨蔓延,5.,Forest dropped,-,森林锐减,6.,Desertification-,土地荒漠化,7.,Air pollution-,大气污染,8.,Water pollution-,水体污染,9.,Marine pollution-,海洋污染,10.,Cross-boundary movements of,poisonous wastes-,毒性废弃物越境转移,NO.1,Global warming,Gradually increasing the greenhouse effect,Earths,temperature rising.,Main hazards,(,危害,),:,abnormal,weather,species,extinction,the sea level,rising.,Ozone(O,3,)layer:the Earths protective layer,Main hazards:,strong UV(,ultra-violet,ray,紫外线,)radiation can damage,immune system,（免疫系统）,of human natures and animals,cause,skin cancer,and,cataracts,（白内障）,damage to the,earths ecosystems,（全球生态系统）,.,NO.2,Ozone layer depletion,NO.3,Loss of biodiversity,NO.4,The spread of acid rain,Global,extinction,of 50,000 species/year,140/day on average.,pH 5.6,referred as acid rain.,Main hazards:,Water and soil,acidification,(,酸化,),plant and animal,death,corrosion,(,腐蚀,),buildings,railways and bridges and other facilities.,NO.5,Forest dropped,NO.6,Desertification,Huge numbers of global,deforestation,.,600 million square kilometers of,land into desert,each year.,NO.7,Air pollution,Sulfide and nitrogen oxides,(,硫化物和氮氧化合物,),into the atmosphere worldwide up to,30 million tons,each year.,NO.8,Water pollution,About 40%of the worlds rivers are,seriously polluted,.,Freshwater,（淡水）,resources are,becoming exhausted.,NO.9,Marine pollution,NO.10,Cross-boundary movements of poisonous wastes,Hundreds of tons of,silt and waste(,淤泥和废弃物,),into the coastal waters annually.,Toxic waste-induced,cancers,.,Environmental,Problems,Amazing,环境问题 触目惊心,保护环境 人人有责,Thank you!,。