水污染的演讲稿怎么写？( 三 )

Species Extinction（物种灭绝）
What is clear is that species are dying out at an unprecedented rate; minimum estimates are at least 4000 species per year, although some scientists believe the number may be as high as 50,000 per year.The leading cause of extinction is habitat destruction, particularly of the world\\'s richest
As habitats are destroyed and species lost, the world is increasingly losing threads from the interconnected fabric of life.
Chemical Risks（化学成分污染）
Many industrially produced chemicals may cause cancer, birth defects, genetic mutations, or death.Although a growing list of chemicals has been found to pose serious health risks to humans, the vast majority of substances have never been fully tested.
Environmental Racism（环境歧视）
Studies have shown that not all individuals are equally
exposed to pollution.Three of the five largest commercial hazardous waste landfills in America are in predominantly black or Hispanic neighborhoods, and three out of every five black and Hispanic Americans live in the vicinity of an
uncontrolled toxic waste site.The fact that the wealth of a community is not nearly as good a predictor of
hazardous-waste locations as is the ethnic background of the residents reinforces the conclusion that racism is involved in the selection of sites for hazardous-waste disposal.
Environmental racism takes international forms as well.Dangerous chemicals banned in the United States often
continue to be produced and shipped to developing countries.Additionally, the developed world has shipped large amounts of toxic waste to developing countries for le-than-safe disposal.

水污染的演讲稿怎么写？

今天我发言的题目是《应加大水资源的保护力度》。
众所周知，我国是一个干旱缺水严重的国家。我国的人均水资源只有2200立方米，仅为世界平均水平的1／4、美国的1／5，在世界上名列121位，是全球13个人均水资源最贫乏的国家之一。水资源的无序开采和严重污染，加剧了其供需矛盾，对正在实施的可持续发展战略带来了严重影响。
如今，地域辽阔、资源丰富的塞外赤峰也已成为缺水地区之一。赤峰市人均占有水资源量已不足900立方米，仅为全国人均水资源占有量的40%，是全自治区人均水资源占有量的41%，远远低于国际公认的人均1700立方米的用水安全线。而“十年九旱“已成为我地去的气候特点，旱魃为虐，随之而来的是赤峰大地河流中断、湖泊干枯，地下水位严重下降。使得我们不得不把水资源的保护与利用上升为战略性高度，作为民生问题对待。
严峻的现实使我们认识到“水“不再是“取之不尽、用之不竭“的资源，每个塞外赤峰人都陷入沉沉的思考：目前赤峰市水资源究竟危机到什么程度？地上和地下水资源缺
乏给农牧业生产乃至人民生活造成多大影响？政府乃至民众应采取哪些应对举措，才能扭转危机局面？