How important is climate change? Climate change is a long-term change in the Earth’s climate overtime. We believe that humans is the main cause of climate change so we are the one who changing the world’s climate. What repercussions could it be? How does climate change affect our life? If we are saying that people are changing the world, make it worse, how was Earth before humans exist? Was it better then now? Before human existence, Earth was a green planet as people often call it. There was no industries, no factories or transportation. Lots of species were not extinct. The atmosphere was cleaner. Forests were not cut down. Soil, air, and water environment were not being polluted. Was that Earth better than the Earth of present?
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Within the past ten years HCM City is developing in many sides but beside that HCM City was highly polluted. According to http://www.numbeo.com/pollution/city_result.jsp?country=Vietnam&city=Ho+Chi+Minh+City, air pollution and water pollution are two types of the highest pollution in HCM City
Environmental Protection Department of Ho Chi Minh City did some experiment and the result showed that 89% of 6 air text sample was substandard, always at the high risk of harmful to people health. According to http://camix.com.vn/tin-tuc/detail/tinh-hinh-o-nhiem-moi-truong-nuoc-o-thanh-pho-ho-chi-minh-105.html, in 2010, the main rivers systems in Viet Nam have pollutants in water which exceeding the prescribed one to three times. Another experiment showed that from 2010-2012 there were 826 sources of wastewater but only 60% of them were filtrated. The reasons of these are because the low consciousness of people, wasted gas and wasted water from industries and factories. Nature also related to the pollution of Ho Chi Minh City like flood caused water pollution or tornadoes make places which it goes through to become landfill. These showed that Ho Chi Minh City is highly polluted and residents should worry and find ways to stop