Increasing the concentration of greenhouse gases beyond today's level will cause the climate to diverge markedly from its present state. Climatic zones shift by about 100 miles for each 1 C of global warming. Sea level will rise all over the planet. Major weather patterns, for example, the tropical monsoons and jet streams are altered. A warming of about 4 C, to which we may be committed in less than 50 years, would result in an ice-free Artic Ocean which will not only devastate arctic ecosystems, but will further climate change and weather. A warming of this extent could also begin an irreversible disintegration of the West Antarctic ice sheets which would result, within a few hundred years, in a further rise in sea level by at least 6 meters. .
The following greenhouse gases contribute to global warming at different degrees. Carbon dioxide, the single most important greenhouse gas, accounts for about half of the warming that has been experienced as a result of past emissions and also for half of the projected future warming. The present concentration is now about 350 parts per million (ppm) and is increasing about 0.4% (1.5 ppm) per year, retaining an additional 3 billion tons of carbon per year. For a very long period of time before the industrial age, the atmospheric concentration was essentially constant. Beginning about 1850, however, the CO2 level began to rise, due in large part to the industrial burning of coal, oil, and natural gas. The atmospheric CO2 level in 1850 was approximately 270 ppm; thus it has already increased by about 30%. Human activities are now causing at least 7 billion tons of carbon, as carbon dioxide, to be released into the atmosphere. Fossil fuel use releases about 6 billion tons per year to the atmosphere. In addition, the clearing and burning of forests causes the pool of carbon which has been tied up in trees to be released. .
Deforestation is in part the result of population expansion in the tropics and the use of land for agriculture and wood for energy.
GLOBAL WARMING Introduction Global warming is a topic that is often talked about today. ... What is Global Warming? ... What Causes Global Warming? ... How do we stop Global Warming? ... Global Warming is one of those little tilts. ...
Global Warming The media has been alerting the general public for numerous years on the perception of global warming and the harm it is causing. ... What scientists detect as global warming may really be a natural occurrence in nature. ... The vast majority of people get their information on global warming from the news media. ... Advocates of global warming point to the 1940's and 1950's as the time period that CO2 levels began to trigger global warming (Carlisle). ... Global warming proponents are seemingly oblivious to the fact that global fluctuations in temperature, charac...
The three main reasons people don't understand global warming are just not understanding the definitions of global warming and the greenhouse affect, how global warming affects them, and the cover up the government uses to convince them. ... According to the EPA's web site on global warming, "Global Warming is described as the progressive gradual rise of the earth's surface temperature thought to be caused by the greenhouse effect and responsible for changes in global climate patterns- (EPA Global Warming Site). ... What if we take the overall temperature rise as a test of g...
There are many misconceptions about global warming. ... Some believe that global warming means that it will become warmer all over. ... Global warming is a danger to a human's health. ... Plagues have been attributed to global warming. ... Global warming can affect our future ability to obtain food. ...
None of these issues quite compare to the problem of global warming. ... What exactly is global warming? ... The greenhouse effect plays an important role in the issue of global warming, but it is not the reason behind why global warming is occurring. ... Because global warming is a global issue it will effect more than just human beings. ... While global warming is hurting our plants and also our sea life global warming takes a large toll on our weather because of the warmer weather most natural disaster are caused by warm weather... ...
The Effects of Global Warming Global Warming will perhaps be, in theory, one of the greatest threats to test the capabilities of mankind. ... So what is Global Warming? ... Scientists are also certain that global warming will cause sea levels to rise. ... A major concern is how global warming will affect agriculture. ... Global warming may also increase the risk of some infectious diseases, particularly those diseases that only appear in warm areas. ...
The Effects of Global Warming Global Warming will perhaps be, in theory, one of the greatest threats to test the capabilities of mankind. ... So what is Global Warming? ... Scientists are also certain that global warming will cause sea levels to rise. ... A major concern is how global warming will affect agriculture. ... Global warming may also increase the risk of some infectious diseases, particularly those diseases that only appear in warm areas. ...
Global Warming Climate change is a part of the Earth's history. Global warming is a theory that has been associated with a rise in the global average temperature. ... Scientists argue over the global warming theory. ... (Parsons 5) There are many causes behind global warming. ... Global warming is also in part caused by human activity. ...
Global Warming Climate Changes Int"l Global Warming is shorthand for the climate changes that may result from excessive heat being trapped in the Earth's atmosphere by so called green house gases. ... Over more recent years humans have caused many changes to the Earth which is a major cause for global warming. ... Over the past few decades scientist have been reviewing the changing weather patters due to global warming. ... The issue of global warming is realized to be that of all of the states on Earth and is a huge global common situation. ... There is no immediate solution to ...
My Geography Essay on Global Warming Introduction In this essay I will be talking about the causes, effects and solutions of global warming. Global warming is caused when factories and cars burn fossil fuels and let off carbon dioxide into the atmosphere. ... Another threat linked to global warming is the destruction of the ozone layer. ... Causes Two of the main causes for global warming are cars and factories. ... Global Countries work together to try and crack global warming. ...
