Discussing Effects - 1 - Revised

Several decades ago, some scientists perceived that global warming, mainly caused by carbon dioxide and usually leading to high temperature, had come into being; notwithstanding the hint, they denied the reminder and still devastated the earth, causing the "global warming" to turn into the "global warning."  Yet, at that time, most people considered it an insignificancy and missed the best time to rescue our globe which was asking for help.  Hence, its impacts on our lives deteriorate now and we should do something to salvage our precious earth.  At the beginning, global warming will lead to awful climate; for instance, high temperature may result in the widespread tropical infections that can make several inhabitants fall ill and even die.  Secondly, it may precipitate the propagation of animals or vegetation; consequently, the biodiversity is going to be threatened as well.  Moreover, the high temperature not only accelerates the desertification but makes it possible to expand unscrupulously.  In addition, global warming conjures images of rising seas; thus, some islands will be threatened that they may be submerged.  As a result, as the "global warming" turns into the "global warning", we cannot neglect it anymore just because its effects on our lives are definitely self-evident.