Don't get mad at me! Get mad at NASA if you don't like their conclusions/data. Don't shoot the messenger! 
I tend to believe them, over many others, as they have changed their position on global warming. They seem to be more concerned with the actual data, than trying to prove their point or get rich off it.
All this global warming garbage got stated when a single NASA scientist testified to congress many years ago. It was later discovered that there were errors in a computer model and those errors were corrected. After the computer program corrections, NASA changed their position on global warming. This is how the UN also came to the conclusion that there is global warming. If you look into it, you will find they continually change their projections on global warming, and this is done whenever they change their computer model!
On top of that, satellite data shows the earth has been cooling for about the last 20 years! Not heating at all, but actually cooling!
It has been learned that the old data, that was collected by land based temp. stations, was flawed. It wasn't flawed because the temps. measured were wrong, it was flawed because the temps. didn't accurately reflect world temps! It is believed that because we are talking about a long period of time (100 years or more), buildings/roads/concrete/etc. have been built up near these stations and the heat content they store up has influenced the temp. readings. Have you ever been in a city in a mountainous area and noticed that the temps within that city are much warmer in the evening than in the surrounding countryside? This explains why the majority of what was believed to be global warming, occurred primarily at night and in winter! Summer temps. remain almost unchanged. And remember, this is all from using the land based temp. stations that are now known to be flawed!
Some pro-global warming activists tried to discredit the satellite data, but the satellite data was shown to be correct by both weather balloons, and by confirming their readings with the ground based temp. measurements.
science.nasa.gov/newhome/headlines/notebook/essd13aug98_1.htm
In the midst of all this, Enron figured out they could make billions by "endorsing" global warming and causing the closing of coal burning plants. Enron controls natural gas, and they could then "price gouge" and replace the coal industry. Enron was also tied into the Clinton administration who actively promoted the idea of global warming and Clinton signed the Kyoto contract. All the while, Gore did the same, and so did environmental groups that could profit by suing "evil" corporations.
Don't believe it? Take a look at this graph

Note, the large gain in 1982 was due to a volcanic eruption from El Chichon and in 1991 from Mt. Pinatubo! Without them it would be pretty much all be down since 1982! Doesn't look like global warming to me! 
I can give you URL's to the stories about the Clinton Administration being tied to Enron also.
You simply can't take temperature measurements in one particular place and say there is global warming or cooling. Remember, we are talking about a degree or two change in 100 years! Do you really think you could personally even come close to noticing this change, maybe .3 degrees in your life, by the snow on the ground? Absolute nonsense. You perception of this snow has either changed from when you were younger, or there is a factual local change that can't be related to an average global change.
Rondey