2 Apr 07
hello shovonpal! I learned about global warming when I was a freshman in highschool. According to our lesson if I remember it right, it is one phenomenon that affects the Earth today. It is a change in Earth's temperature due to the destruction of the ozone layer that protects us from the ultraviolet rays of the sun. Such phenomenon is also brought about by the decrease of our forest cover and the constant burning of fossil fuels. As a result, there is an increase and erratic change in the Earth's temperature. That's why some parts of the Earth experiences long drought called El niño. Less water supply is also felt in some parts of the globe. People suffer skin cancer and other diseases. Global warming happened because of man's neglect of nature. We can help minimize the effect of global warming by planting more trees and avoid burning plastics. I am doing my share in saving this world for my future and for the next generation. Are you doing your share in saving the Earth? THE POWER IS OURS! Lets help Captain Planet.
2 Apr 07
Global warming has nothing to do with the ozone layer. It's a largely natural climatic change that's taking place. It's possible that human activities are making the problem worse, but that's debatable. What is sure, from scientific studies of ice cores in Antarctica and Greenland, is that such climatic changes have happened in the past at times when there where very few humans around. These past climatic shifts have in some cases been very much bigger than the one which is taking place now.
3 Apr 07
Yes,our global is becoming warming.This 2007 Spring Festival all the Chinese evidently notice the temperature become warming more and more.At last Spring Festival,we should wear more clothes but now we just need wear one or two clothes.The environment is severity destoried by human.We should protect the earth.
3 Apr 07
Carbon dioxide and other air pollution that is collecting in the atmosphere like a thickening blanket, trapping the sun's heat and causing the planet to warm up. Coal-burning power plants are the largest U.S. source of carbon dioxide pollution -- they produce 2.5 billion tons every year. Automobiles, the second largest source, create nearly 1.5 billion tons of CO2 annually. Here's the good news: technologies exist today to make cars that run cleaner and burn less gas, modernize power plants and generate electricity from nonpolluting sources, and cut our electricity use through energy efficiency. The challenge is to be sure these solutions are put to use. Is the earth really getting hotter? Yes. Although local temperatures fluctuate naturally, over the past 50 years the average global temperature has increased at the fastest rate in recorded history. And experts think the trend is accelerating: the 10 hottest years on record have all occurred since 1990. Scientists say that unless we curb global warming emissions, average U.S. temperatures could be 3 to 9 degrees higher by the end of the century.
2 Apr 07
Global warming is the observed increase in the average temperature of the Earth's near-surface air and oceans in recent decades and its projected continuation. The Intergovernmental Panel on Climate Change concludes, "most of the observed increase in globally averaged temperatures since the mid-20th century is very likely due to the observed increase in anthropogenic greenhouse gas concentrations, which leads to warming of the surface and lower atmosphere by increasing the greenhouse effect. Other phenomena such as solar variation and volcanoes have probably had a warming effect from pre-industrial times to 1950, but a cooling effect since 1950. These conclusions have been endorsed by at least 20 scientific societies and academies of science, including all of the national academies of science of the G8 states. Some individual scientists disagree with parts of this conclusion as does the American Association of Petroleum Geologists. Models referenced by the IPCC predict that global temperatures are likely to increase by 1.1 to 6.4 °C (2.0 to 11.5 °F) between 1990 and 2100. The range of values reflects the use of differing scenarios of future greenhouse gas emissions as well as uncertainties regarding climate sensitivity. Although most studies focus on the period up to 2100, warming and sea level rise are expected to continue for more than a millennium even if no further greenhouse gases are released after this date. This reflects the long average atmospheric lifetime of carbon dioxide (CO2). An increase in global temperatures can in turn cause other changes, including a rising sea level and changes in the amount and pattern of precipitation. There may also be increases in the frequency and intensity of extreme weather events, though it is difficult to connect specific events to global warming. Other consequences include changes in agricultural yields, glacier retreat, reduced summer streamflows, species extinctions and increases in the ranges of disease vectors. Remaining scientific uncertainties include the exact degree of climate change expected in the future, and especially how changes will vary from region to region across the globe. A hotly contested political and public debate also has yet to be resolved, regarding whether anything should be done, and what could be cost-effectively done to reduce or reverse future warming, or to deal with the expected consequences. Most national governments have signed and ratified the Kyoto Protocol aimed at combating greenhouse gas emissions.
2 Apr 07
May be how about start an action. Here in my country, we already feel the effects. I already take some action. I know my action only the minor one but if everyone do the same thing then we can save or at least slowing down the 'aging process' of our mother earth. 1. Avoid buying anything that is not cfc-free 2. Avoid using polysterene 3. Recycle the plastic (i am planning to use my own bag but certain place they won't allow that.) Planning to do more. ;)
2 Apr 07
Global warming is a serious social problem now.According to an expert,some countries below the sea level will vanish as the rising of the sea level,so i think everyone who lives on this earth has responsibility to call for the government,company to take actions to protect the problem of Global warming. Welcome to mylot.
2 Apr 07
No more talk and discussions are required to carried out on this globle warming issue. A time has come where we all should just start some positive "ACTION" without any delay I think. The scientists have talked and wrote enough in this matter and here is where the mankind should feel shame about the ignorence I think. All the best from oarnamav.