求教一篇英语演讲的小文章"free talk"

求教一篇英语演讲的小文章"free talk"
希望多给点素材 第一次讲 我自己想的是有关环保的小短文吧,而且希望文章不要太难,生词不要太多,3分钟 大家多给点建议,写作上也不是多会,希望能多教教我
关于短文,尽量能给我一些范文,文章能多讲些实际的行动,有关环保的.当然大家有别的建议更希望多教教我哦~

Environmental protection
Environmental protection is a practice of protecting the environment,on individual,organizational or governmental level,for the benefit of the natural environment and (or) humans.Due to the pressures of population and our technology the biophysical environment is being degraded,sometimes permanently.This has been recognized and governments began placing restraints on activities that caused environmental degradation.Since the 1960s activism by the environmental movement has created awareness of the various environmental issues.There is not a full agreement on the extent of the environmental impact of human activity and protection measures are occasionally criticized.
Academic institutions now offer courses such as environmental studies,environmental management and environmental engineering that study the history and methods of environmental protection.Protection of the environment is needed from various human activities.Waste,pollution,loss of biodiversity,introduction of invasive species,release of genetically modified organisms and toxics are some of the issues relating to environmental protection.
Governance
Many Constitutions acknowledge the fundamental right to environmental protection and many international treaties acknowledge the right to live in a healthy environment.
Also,many countries have organizations and agencies devoted to environmental protection.There are International environmental protection organizations,as the United Nations Environment Programme.