Natural variations in temperature could be caused by variations in the earth's orbit, or variations in the sun's output, or several other factors including sulfur dioxide emitted by volcanoes. The precise contributions of these natural causes of temperature variations are unknown and unpredictable at the present. .
Sunspots are a significant factor. Human caused warming is by increased concentrations of greenhouse gasses such as carbon dioxide. The science of the greenhouse effect is not in doubt - the planet Venus is affected by a greenhouse effect. What is in doubt is the precise relationship between the concentration of greenhouse gasses and temperature rise. .
Humans have also emitted sulfur dioxide, which has a cooling effect and has tended to mask the warming effect of rising carbon dioxide for much of the last 100 years until the mid-1970's, when clean air acts became operative. This planet is losing its forests, 34 million acres each year through burning and cutting. The destruction of tropical forests alone is throwing hundreds of millions of tons of carbon dioxide into the atmosphere each year. We are also losing temperate forests. The temperate forests of the world account for an absorption rate of 2 billion tons of carbon dioxide annually. In the temperate forests of Siberia alone, the earth is losing 10 million acres per year. .
Scientists say that unless global warming emissions are reduced, average U.S. temperatures could rise another 3 to 9 degrees by the end of the century, with far reaching effects. Sea levels will rise, flooding coastal areas. Heat waves will be more frequent and more intense. Droughts and wildfires will occur more often. Disease-carrying mosquitoes will expand their range and species will be pushed to extinction. Disease-carrying mosquitoes are spreading as climate shifts allow them to survive in formerly inhospitable areas. Mosquitoes that can carry dengue fever viruses were previously limited to elevations of 3,300 feet but recently appeared at 7,200 feet in the Andes Mountains of Colombia.
Is the Threat of Global Warming Real? Is the threat of global warming real? ... Brian Tucker believes that global warming is "science fiction". ... The real issues are misconstrued about science. ... Brian Tucker's main thesis is that science "does not support the conclusion that calamitous effects from global warming are nigh upon us." ...
The theory of global warming is one of great controversy. ... The increase of human activity on earth, burning elements which release these gasses, can account for the raise in CO2 levels in the atmosphere (Robinson, Arthur (1997, December 4) Science Has Spoken: Global Warming, Wall Street Journal). ... Another element that supports the global warming theory is the evidence of the Ozone hole. ... More trees and vegetation have been planted in recent years than any other time to help compensate for the rises (Robinson, Arthur (1997, December 4) Science Has Spoken: Global Warming Wall Street...
Infectious diseases is one of the major threats that global warming poses to human health (Ward). ... The United States is the largest global warming nation in the world. ... With transportation and industry, the two key players involved, being such a key part of not only the global economies but of day to day life, the issue of reducing greenhouse gases becomes hard to resolve. ... Huntington, N.Y. : Nova Science Publishers 2. ... Nordhaus and Joseph Boyer (2000) Warming the World: Economic Models of Global Warming Cambridge, Mass. : MIT Press 4. ...
The issue of global warming needs to be addressed because the temperature on the earth's surface is increasing at an alarming rate. ... Alaska, western Canada and eastern Russia are warming at twice the rate as the rest of the world ("Global warming science"). ... The evidence connects to my argument and only portray an urgency to address the issue of global warming. Global warming also leads to natural disasters like floods, which further highlight the seriousness of the issue and make it necessary to take action. ... With all the published evidence and facts, it is clear that...
Global Warming; a False Perception. ... The evidence supporting global warming is weak at best. ... There has been no observable evidence as yet that global warming is taking place. ... In the September 9, 1994, issue of science, reporter Richard Keir reveals the "fudging" that modelers engage into make models come up with the correct numbers (Roleff 43). ... Over the past years there has been no observable evidence that global warming is taking place. ...
The theory of global warming is an idea that attempts to explain why temperatures and the global climate have steadily risen over the past few years. ... One of the primary reasons the topic of global warming has become such a popular and misleading issue today is largely due to the distortion of information and hype attributed to the matter through the media. ... As stated earlier, many supporters of the global warming theory have firmly hailed the matter as a recent issue unlike any mankind has dealt with before. ... By far the most important factor to take into consideration in t...
Global Warming: Fact or Fiction What is global warming? ... Global warming is a hoax which is taking money and research away from issues that are actually effecting us today. ... Until recently very few, if any global warming models included these effects. ... Global warming is nothing but a lie, hoax and myth. ... Science and technology can be an amazing asset, if we use it properly. ...
" Ferrara also sustains that the United Nations wants a global power and convinced some progressive scientists to prove that Global Warming theory is real. ... Since then, the White House has questioned the validity of the science behind global warming, and claims it is too costly because millions of jobs will be lost if the United State joins in this world pact. ... On the movie, Al Gore pointed out that United States is not helping to resolve the Global Warming issue. ... Between industrialization, tobacco industry, gas emissions, and destruction of green areas, he manifested this count...
Rumors and propaganda against the validity of global warming are rampant. ... Since 1991, fossil fuel lobbyists have spent "many millions of dollars to persuade the public, the media and policy makers that global warming is a non-issue" (Gelbspan). ... Efforts should be made to eradicate any skepticism about global warming. ... The evidence of global warming can also be physically seen. ... Dickinson, Professor of Atmospheric Sciences at the Georgia Institute of Technology. ...
