Why doesn't global warming exist?

Answer

What do you mean? Global warming exists. It's reality.

Answer

Because, since 1998, global average annual temperatures have been going down. That is a fact that even the alarmist World Meteorological Organization admits. Of course, the WMO blames it on a La Nina. However, the current La Nina has lasted less than one year, so it cannot explain all of the last 10 years, especially when multiple El Ninos (which are supposed to increase global temperatures) occurred during that time.

And even prior to the current cooling, between 1975 and 1998, when global average annual temperatures were supposedly going up, there is now considerable reason to doubt that they were really going up. See the link below to surfacestations.org. It appears that 87% of the temperature-recording stations in the US alone are located within 30 meters of an artificial heat source, which biases temperatures upward by at least 1^oC. By my own calculations, the US's portion of the "official temperature record" has an average bias of slightly more than 3^oC. Since the US makes up 9% of the land area on the planet, even if the rest of the world's temperature recording stations are completely unbiased (not likely), the bias in the US alone accounts for 0.27^oC, or nearly half of the 0.6^oC increase in global average annual temperature observed over the last 40 years. But it is more likely that, at least in Canada, Europe, and China, the observations are subject to some degree of positive bias. It would not surprise me at all if, once all of these biases were quantified, the actual temperature has not gone up at all over the last 40 years, and may have gone down.

In any event, the analysis by surfacestations.org proves that actual temperatures have not gone up nearly as rapidly as the 0.15^oC per decade claimed by global warming alarmists. This is a crucial point because alarmists have finally been forced to admit not only that global warming occurred in the past, in a regular, 1,000-year cycle (the last three episodes are now called the Minoan, Roman, and Medieval Warm Periods), but that the peak temperatures during all three of these past events exceeded the highest temperatures achieved during the "current" warm period. So now they have fallen back on the claim that the "current" warming is unique because of how rapidly temperatures have been rising, continually pointing to that 0.15^oC per decade statistic. But that statistic is now proven to be positively biased, and the actual rate of warming, even if the only the US's temperatures are biased, is only about 0.08^oC per decade. This puts it below the rate of warming of all three of the previous warm periods. So once again we are left with the unavoidable conclusion that the current warming is not unusual at all. The corollary to that conclusion is that there is no reason to believe that the current warming has anything other than natural causes, especially since it falls right in line with the natural cycle that caused the three previous events. In other words, even if it is (or was) happening, we didn't cause it. And furthermore, it's going to reverse itself without our help, just like it did the last three times. In fact, it is very likely that the last 10 years are the beginning of that reversal.

(Unfortunately, if the current cooling trend lasts more than 20 years, which it probably will, the same alarmists who are now screaming "global warming" will be issuing dire warnings about "global cooling", just like they were 40 years ago.)

First answer by ID1129276979. Last edit by Btrevoryoung. Contributor trust: 207 [recommend contributor]. Question popularity: 15 [recommend question]