background information earth day
april 22 is earth day our country this year to determine the theme of treat the earth protect the environment
earth day originated in the us in 1969 democratic senator gaylord nelson proposed the park in the us schools held workshops on environmental issues and the following year on april 22 as earth day then 25yearold harvard law school student dennis will soon be the proposal throughout the united states into a largescale communitybased activities specific ideas and get enthusiastic support of many young students april 22 1970 the united states for the first time held a massive earth day around 2000 people participated the united states since world war ii was hailed as the largest social activities
april 22 1990 more than 140 countries around the world 200 million people around the same time held a variety of promotional activities the theme is how to improve the overall global environment the event made people more clearly recognize as the global industry continues to develop ozone layer destruction and the resulting global climate change is becoming a direct threat to the global problem of human existence the activities of the united nations approval then every year on april 22 was identified as the world earth day
currently the more prominent environmental issues soil erosion desertification pollution of freshwater resources according to un figures released by the 20th century the world's forest area 90 at an average annual rate of 24 reduction in the past 10 years the world's total forest area of the disappearance of 94 million hectares at present nearly half the land surface and more than one billion people affected by desertification pollution in the atmosphere from 1965 to 1998 global carbon dioxide emissions doubled the world is facing a water crisis in many countries 12 million people short of water 30 billion people lack water sanitation
each year from 3000000 to 400 million deaths and waterrelated diseases by 2025 the water crisis will be spread to 48 countries 35 million are trapped by the water
earth day activities held to raise human caring for the earth protect the home in promoting the coordinated development of resource development and environmental protection my 90 years from the 20th century the annual april 22 earth day celebrations are held
中文翻译 背景资料:世界球日
4月22日世界球日国年确定题善球保护环境
球日起源美国1969年民参议员盖洛德·尼尔森提议美国校园举办关环境问题讲会次年4月22日作球日时25岁哈佛学法学院学生丹尼斯·海斯快提议变成全美展开规模社区性活动具体构想青年学生热烈支持1970年4月22日美国首次举行声势浩球日活动约2017万参加时誉二战美国规模社会活动
1990年4月22日全世界140国家2亿时举行种样宣传活动题改善全球整体环境次活动更加清醒认识着全球工业断发展气臭氧层遭破坏带全球气候异常变化正成直接威胁类生存世界性问题项活动联合国首肯年4月22日确定世界球日
目前世界环境问题越发突出水土流失土沙漠化淡水资源污染等联合国公布数字表明20世纪90年代全球森林面积均年24速度缩减2017年全球消失森林总面积达9400万公顷目前全球二分陆表面10亿口受沙漠化影响气污染方面19651998年全球二氧化碳排放量翻番目前世界许国家正面水资源危机:12亿水短缺30亿缺乏水卫生设施年
300万400万死水关疾病2025年水危机蔓延48国家35亿水困
世界球日活动举办期唤起类爱护球保护家园意识促进资源开发环境保护协调发展国20世纪90年代起年4月22日举办世界球日纪念活动
文档香网(httpswwwxiangdangnet)户传
《香当网》用户分享的内容,不代表《香当网》观点或立场,请自行判断内容的真实性和可靠性!
该内容是文档的文本内容,更好的格式请下载文档