13 reasons and counting for questioning Al Gore and company. (Not counting all of the political and financial motivations.)
1) The climate changes all on its own. This can be shown with data - lots of data.
2) CO2 (carbon dioxide) is emitted by all animals and is food for plants. It is not a bad thing anymore than oxygen is. (Oxygen is actually a bad thing - it causes most things to oxidize or burn. That is a destructive process, but it does release energy, which is why we use it to live.)
3) CO2 is a small percentage of the atmosphere. Nitrogen is by far the most prevalent gas. Depending on which parts of the atmosphere you want to include, nitrogen plus oxygen represent 99% of the atmosphere. Water vapor and argon are next, making up most of the last 1%. CO2 represents less than .03% or .0003 or 3 parts per 10,000.
4) CO2 concentrations go up and down for natural reasons like volcanos. Volcanos, the director of Goddard Space Center says, produce the most CO2 of anything. Since plant life contributes a lot to the reduction in CO2, why not blame plants? Those bad plants just haven't been busy enough, time for some genetic engineering. Of course cutting down trees doesn't help the situation, but most plant life is oceanic.
5) How many measurements does it take to find the difference that man makes in that .03%? Statistically, way more than we have available. If CO2 is such a small component, think how serious a minor error in the measuring equipment would make. Let's say I am measuring the atmospheric content and I make a .001% error (pretty small error). If that error is in measuring CO2, whoa, that's like plus or minus 1/3! Like um, the temperature is 100 plus or minus 33 degrees. Quite a variation. I hope a pigeon didn't sneeze on your probe.
6) The period in which actual temperature measurements are available starts in 1850. Everything that went on before is conjecture. And as the now revealed hoax shows, if the conjecture did not fit the desired result, they simply changed the basis for conjecture until it did. That conjecture is consistent with the desired outcome until about 1980. After that, it no longer supports the predetermined conclusion. So, they just stop using it and substitute real temperature data instead. And when real temperature data doesn't support the predetermined conclusion (which it doesn't), then they fake it some more.