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Lizahana -> RE: Global warming- do you know the truth? (5/7/2008 7:48:24 AM)
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quote:
ORIGINAL: freakofnature Liz and 1dblthink02 Please review the following and reply in kind: http://www.foxnews.com/video/index.html?playerId=videolandingpage&streamingFormat=FLASH&referralObject=97457&referralPlaylistId=949437d0db05ed5f5b9954dc049d70b0c12f2749 the statements at about 1:14 and then also this: http://climateaudit.org/ The trend seems to be changing. I don't know how ice can continue to get larger on a planet that is too hot to maintain it... oh wait... it caint!!!!! ( i know it is spelled wrong) freakofnature, I went to the very source of the information that your fox news quoted, the noaa, and this is what THE NOAA says about global change: "What is the greenhouse effect, and is it affecting our climate? The greenhouse effect is unquestionably real and helps to regulate the temperature of our planet. It is essential for life on Earth and is one of Earth's natural processes. It is the result of heat absorption by certain gases in the atmosphere (called greenhouse gases because they effectively 'trap' heat in the lower atmosphere) and re-radiation downward of some of that heat. Water vapor is the most abundant greenhouse gas, followed by carbon dioxide and other trace gases. Without a natural greenhouse effect, the temperature of the Earth would be about zero degrees F (-18°C) instead of its present 57°F (14°C). So, the concern is not with the fact that we have a greenhouse effect, but whether human activities are leading to an enhancement of the greenhouse effect by the emission of greenhouse gases through fossil fuel combustion and deforestation. -------------------------------------------------------------------------------- 2. Are greenhouse gases increasing? Human activity has been increasing the concentration of greenhouse gases in the atmosphere (mostly carbon dioxide from combustion of coal, oil, and gas; plus a few other trace gases). There is no scientific debate on this point. ... 3. Is the climate warming? Global surface temperatures have increased about 0.74°C (plus or minus 0.18°C) since the late-19th century, and the linear trend for the past 50 years of 0.13°C (plus or minus 0.03°C) per decade is nearly twice that for the past 100 years. The warming has not been globally uniform. Some areas (including parts of the southeastern U.S. and parts of the North Atlantic) have, in fact, cooled slightly over the last century. The recent warmth has been greatest over North America and Eurasia between 40 and 70°N. Lastly, seven of the eight warmest years on record have occurred since 2001 and the 10 warmest years have all occurred since 1995. ... 11. What about the future? Due to the enormous complexity of the atmosphere, the most useful tools for gauging future changes are 'climate models'. These are computer-based mathematical models which simulate, in three dimensions, the climate's behavior, its components and their interactions. Climate models are constantly improving based on both our understanding and the increase in computer power, though by definition, a computer model is a simplification and simulation of reality, meaning that it is an approximation of the climate system... The IPCC Special Report on Emission Scenarios determines the range of future possible greenhouse gas concentrations (and other forcings) based on considerations such as population growth, economic growth, energy efficiency and a host of other factors. This leads a wide range of possible forcing scenarios, and consequently a wide range of possible future climates. According to the range of possible forcing scenarios, and taking into account uncertainty in climate model performance, the IPCC projects a best estimate of global temperature increase of 1.8 - 4.0°C with a possible range of 1.1 - 6.4°C by 2100, depending on which emissions scenario is used. However, this global average will integrate widely varying regional responses, such as the likelihood that land areas will warm much faster than ocean temperatures, particularly those land areas in northern high latitudes (and mostly in the cold season). Additionally, it is very likely that heat waves and other hot extremes will increase. ..." http://www.ncdc.noaa.gov/oa/climate/globalwarming.html#q2 Now, you are the one who brought the noaa (you are aware that the fox clip spoke of the noaa) into the picture and the aforementioned. And my answer to your question, "I don't know how ice can continue to get larger on a planet that is too hot to maintain it... oh wait... it caint" My guess would be that this is over a long trend - that increases in temperature will in the long run cause our climate to change drastically - and according to the NOAA, UN, IPCC, it already has started. And, if you want to believe a test from a work safety engineer that is 10 years old, over the scientific consensus that includes the UN, the IPCC, our own government EPA, the NOAA, and even the Bush Admin has conceded that global warming is here and that humans play at least a part in it - if you choose to believe 10 year old test from a work saftey engineer over the aforementioned - I can't do anything about that - that is your problem, not mine. Peace and God bless,
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