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Dustin
Beginner
Posts: 29
Registered: 6/11/2006
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Points: 980
Mood: Happy
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My Global Warming Report
Global Warming is one of the hot button topic of today. A couple of years back this was seen as absurd and just wish casting from some tree hugging scientists. Now Major Scientists are issuing articles such as this.
Source: http://news.scotsman.com/uk.cfm?id=570702006
| Quote From Source: | THE Government's chief scientist today warned that the world is facing a temperature rise of more than 3C, causing drought and famine and threatening millions of lives.
Professor Sir David King said that even by the most optimistic assessments carbon dioxide levels were set to rise to double what they were at the time of the industrial revolution.
| | Click source url to view entire story. |
With proclamations like this global warming is happening. There is no doubt with that. The problem with this is we need to find out if the green house emissions from cars, and factories, are causing this temperature raise, or is it a natural cycle?
Well maybe we can find out.
According to this chart it looks as if temperature change is huge! But if you set this down to a more detailed scale it does not look like as big as a change but obviously temperatures have risen.
http://www.cru.uea.ac.uk/cru/data/temperature/nhshgl.gif
Thats only one simple example though.
Some more concrete examples of global warming are shown on this article.
The impact of global warming in North America
Click on the numbered icons below for more information.
Source: http://www.climatehotmap.org/America.html
| Quote From Source: | North American continent ranges from the lush sub-tropical climate of Florida to the frozen ice and tundra of the Arctic. Within these extremes are two wealthy industrialized countries with diverse ecosystems at risk. Yet the United States and Canada are two of the largest global emitters of the greenhouse gases that contribute to a warming climate. Examples of all 10 of the "hotspot" categories can be found in this region, including changes such as polar warming in Alaska, coral reef bleaching in Florida, animal range shifts in California, glaciers melting in Montana, and marsh loss in the Chesapeake Bay.
| | Click source url to view entire story. |
1998, was a very warm year..this site is outdated though. As 2005 has been even warmer than 98. This shows global warming is a reality. What could the effects of global warming be?
1. Famine
2. Drought
3. Habitat destruction, along with ecosystem destruction.
4. More intense, but shorter winters, for the reason of more moisture in the air.
5. The flooding of coastal cities.
6. More Extreme Global Weather
7. The spreading of deserts.
and that only names a few. Global warming is not something to play around with.
Proof That Man has caused global warming. the series.
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According to this article here.
http://www.timesonline.co.uk/article/0,,3-1489955,00.html
| Quote From Source: | The strongest evidence yet that global warming has been triggered by human activity has emerged from a major study of rising temperatures in the world's oceans.
| | Click source url to view entire story. |
Another good article. http://www.realclimate.org/w...ents-popup.php?p=196&c=1
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While according to my text book that I use for school, they claim that " global warming is not happening, because the changes are minute, and in some places in the world the temperatures are actually cooling! That temps are not warming at all." I do not buy this one bit, I do believe that global warming may not be caused by people, as the fact nature gives out a good percantage more greenhouse emissions that people do. To say global warming is not happening is absurd though.
http://www.dailypress.com/news/local/dp-00522sy0apr07,0,4992024.story?coll=dp-news-local-final
According to this article, the increased amount of hurricanes is do with global warming. They say that this recent spring of hurricanes since 95 is from increased SST's which is caused by greenhouse emmissions. Last year near the SW, coast of FL, the SST's were near 90 deggrees Farigenhight.
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There is proff that global warming can cause global cooling.
according to this source
http://www.dinosauria.com/jdp/news/freeze.html
Comments appreciated.
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Indy
Super Administrator
Posts: 4190
Registered: 6/24/2004
Member Is Online
Points: 80690
Mood: Resident Skeptic
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I think there are signs that there is a short term change. Remember it was back in the 70's that we were being warned about an ice age because of what we were doing. A decade later it is global warming. Right now we are in the middle of a short term climate cycle. Until it breaks out of the short term and heads in to long term there is no reason to believe anything out of the ordinary is going on. It is when you are expected to be heading into a cool phase and it never comes that you can identify that you have a problem. But even in this case there is no way to prove who is responsible.
Honestly does it matter who or what is responsible. It is like going skydiving and complaining on the way down about who packed your chute because it won't open. It doesn't matter if it was poorly packed or whether it was a manufacturers defect. The important issue is softening the blow when you hit the ground. Man was blamed for the ozone hole. So far that theory has fallen flat on its face. The reality is nobody really know what causes the hole. Blaming man is just convenient. Despite all the reductions in CFCs the hole as of recent was larger than ever. People need to seperate lab science from reality. In a lab CFCs destroy ozone. In reality CFCs are heavier than air and can't get to 70,000 feet.
Same goes for global warming. In a lab and in a model it looks good. But proving it is a different animal. It is the chicken/egg problem. Did warming cause CO2 levels to rise. Or did rising CO2 levels cause warming. And if so what really contributed the most to it.
All this focus on CO2 really doesn't matter when the real cluprit behind warming can EASILY be attributed to landcover changes. But what that means is no amount of fuel efficiency will correct the problem. No money in that. It would mean you'd have to get rid of all your concrete and asphalt and nobody is going to do that.
Sorry for the rant. Time for more coffee.
"I think God gives us children so death won't come as such a disappointment." - Two and a Half Men |
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posted on 7/10/2006 at 12:27
