Man-Made global warming exists* and poses a serious threat to humanity.

Pros CasePoint A: Man-Made Global Warming existsSub point 1: Scientific consensus"Carbon dioxide and other global warming pollutants are collecting in the atmosphere like a thickening blanket, trapping the sun's heat and causing the planet to warm up. Although local temperatures fluctuate naturally, over the past 50 years the average global temperature has increased at the fastest rate in recorded history. Scientists say that unless we curb the emissions that cause climate change, average U. S. temperatures could be 3 to 9 degrees higher by the end of the century. " Scientists are undoubtedly sure that Man-Made Global warming is indeed a real threat. As is corroborated by a collection of scholarly articles. 97% of climate scientists are in agreement. (1)(2)(3)(4)(5)(6)(7)Point B: man-made global warming is the primary cause of Global WarmingSub point 1: Scientific Consensus"The United States Global Change Research Program (which includes the Department of Defense, NASA, National Science Foundation and other government agencies) has said that 'global warming is unequivocal and primarily human-induced' and that 'climate changes are underway in the United States and are projected to grow. '"(3)"The climate change denial machine has been working hard to discredit the latest UN Intergovernmental Panel on Climate Change (IPCC) report, which confirms that climate change is occurring and that human activity is primarily responsible. "(5)"Ninety-seven percent of climate scientists agree that climate-warming trends over the past century are very likely due to human activities,and most of the leading scientific organizations worldwide have issued public statements endorsing this position. "(6)Again this is a case of overwhelming scientific consensus. Scientific research has been done by a countless number of experts, and they have all come to a similar agreement. Humanity is the primary cause of global warming. To challenge this claim is to challenge the authority of research giants such as NASA. Environmental scientists are the authority on this subject, and they agree with the Pro. Sub point 2: Carbon Emissions are a major cause, and a product of humanity"The only way to explain the pattern [global warming] is to include the effect of greenhouse gases (GHGs) emitted by humans. "(2)"Most climate scientists agree the main cause of the current global warming trend is human expansion of the "greenhouse effect" -- warming that results when the atmosphere traps heat radiating from Earth toward space. Certain gases in the atmosphere block heat from escaping. Long-lived gases, remaining semi-permanently in the atmosphere, which do not respond physically or chemically to changes in temperature are described as "forcing" climate change"(7)Scientists agree that humanity has altered the balance of greenhouse gases on the earth, which is a direct major cause of global warming. Point C: The effects of global warming are extreme. Global climate change leads to:-Increased temperatures-Changing landscapes-A higher number of droughts, fires, and floods-Endangered wildlife habitats-Rising sea levels-Greater damage from extreme storms-More heat-related illness and disease-Economic problems(4)Sub point 1: man-made global warming encourages natural disaster"Hurricanes and other storms are likely to become stronger. "(2)"Anthropogenic warming by the end of the 21st century will likely cause hurricanes globally to be more intense on average (by 2 to 11% according to model projections for an IPCC A1B scenario). This change would imply an even larger percentage increase in the destructive potential per storm, assuming no reduction in storm size. "(8)With storms like sandy become more common and much stronger, Humans living in coastal regions face a very serious threat. Already hurricanes such as sandy and the recent Typhoon in the Philippines are costing billions of dollars in damages, and thousands of human lives. (9)(10)Man-made global warming is likely to cause these storms to become even more intense, therefore threatening to cost even more lives and money. These death counts and damage costs are not small, by any stretch of the imagination; with global warming left unchecked, these counts will grow. Sub point 2: Rising sea levels/flooding"Sea levels are expected to rise between 7 and 23 inches (18 and 59 centimeters) by the end of the century, and continued melting at the poles could add between 4 and 8 inches (10 to 20 centimeters). "(2)"Floods and droughts will become more common. Rainfall in Ethiopia, where droughts are already common, could decline by 10 percent over the next 50 years. "(2)As polar caps warm, ice caps are likely to melt and release water into the oceans and seas, causing the levels to rise. this could result in flooding in coastal cities, such as New Orleans, that are close to, at, or below sea level. Furthermore, man-made global warming could result in more intense cycles of flooding and drought in other areas of the world, such as Ethiopia. These are real threats to human lives. Flooding, like storms, has a very high cost of both money and, more importantly, human life. Sub point 3: Future effects of man-made global warming could significantly increase the hostility of the Earth environment. There are a myriad of effects that man-made global warming will have that will make the Earth environment, generally, more hostile. "Some diseases will spread, such as malaria carried by mosquitoes. " (2)"Less fresh water will be available. If the Quelccaya ice cap in Peru continues to melt at its current rate, it will be gone by 2100, leaving thousands of people who rely on it for drinking water and electricity without a source of either. " (2)"Below are some of the regional impacts of global change forecast by the IPCC:-North America: Decreasing snowpack in the western mountains; 5-20 percent increase in yields of rain-fed agriculture in some regions; increased frequency, intensity and duration of heat waves in cities that currently experience them. -Latin America: Gradual replacement of tropical forest by savannah in eastern Amazonia; risk of significant biodiversity loss through species extinction in many tropical areas; significant changes in water availability for human consumption, agriculture and energy generation. -Europe: Increased risk of inland flash floods; more frequent coastal flooding and increased erosion from storms and sea level rise; glacial retreat in mountainous areas; reduced snow cover and winter tourism; extensive species losses; reductions of crop productivity in southern Europe. -Africa: By 2020, between 75 and 250 million people are projected to be exposed to increased water stress; yields from rain-fed agriculture could be reduced by up to 50 percent in some regions by 2020; agricultural production, including access to food, may be severely compromised. -Asia: Freshwater availability projected to decrease in Central, South, East and Southeast Asia by the 2050s; coastal areas will be at risk due to increased flooding; death rate from disease associated with floods and droughts expected to rise in some regions. "(11)Here are some charts to illustrate further effects. (11)Current Effects Future Effects Human lives are at stake, and even the economies of the world are at stake. SummaryThere is overwhelming evidence to prove that man-made global warming is indeed real. Furthermore, the effects of man-made global warming are so massively detrimental that those who are concerned over the future of humanity ought to care greatly about the massive loss of life, cost of damage, and other miscellaneous undesirables that are consequences of man-made global warming. Sources1. . http://www.sciencemag.org...2. . http://environment.nationalgeographic.com...3. . http://www.nrdc.org...4. . http://www.mfpp.org...5. . http://www.edf.org...6. . http://climate.nasa.gov...7. . http://climate.nasa.gov...8. . http://www.gfdl.noaa.gov...9. . http://www.usatoday.com...10. . http://www.nbcnews.com...11. . http://climate.nasa.gov...;