global warming, yet another hoax the liberal media enjoys
not very accurate. the GW is very real, but perhaps man has very little to do with causing it. I personnally think man does for two reasons:
(1) I tend to not believe in strange chance coincidences. I.e. that the sun or some natural source "just happened" to be generating this period of GW in sychronization with man's increased addition of greenhouse gases to the atmosphere (not just CO2 from fossel fuels, but also chlorine and flourine compounds that never before existed in the air and are both active IR absorbers and also good catilizting agents for other chemical reactions. The NOx that pours from all modern high compression internal combustion engines also increase GW much more than CO2 on a "per molecule" basis. In addition, H2O is much more effective GHG "per molecule" than CO2. Water vapor in the air is very abundant and surely the dominate GHG. It has a complex natural cycle, of evaportaion and rain, etc. By introducing more small particles to nucleate water drop formation the "rain side" of this natural cycle is being encouraged and probably the "evaportion side" is being surpressed as more clouds are formed to reflect back into space sunlight that would have passed thru the same amount of water vapor as the cloud contains. Puting these particles and CO2 up high, 30,000+ feet as airplanes do, is particularlly effective.)
SUMMARY - man is definitiely doing many different things that definitely have an effect on GW but how important each is is very difficult to evaluate, but it is hard to believe that the sychronization of GW with these rapidly increasing activities that at least contribute to GW is not a significant part of its cause, but that could be the case. - I.e. It is possible, but improbable, that GW has a mainly natural causes and it is only chance that has it sychronized with these GHG producing activities of man.
(2) Although there have been periods in the long history of the Earth when concentrations of CO2 were higher and lower; the RATE at which it changes is very important and never before has the rate of change been so great. CO2 is quite stable molecule. (Heavier than air, so can pour it on fires to put them out, etc.) A huge amount of it can still be absorbed into the oceans (They are far from saturated at current temperature and one atmopsphere pressure.) BUT this process of removal is slow relative to the rate that combustion of fossel fuels is adding CO2 to the atmosphere (Why the CO2 concentration in the air has increased by at least 1/3 in less than a century.) The other (perhaps the only other) removal process for taking CO2 from the air is photosynthesis by green plants. Here too, man is greatly interfering with the natural process by clearing land of forests and the agricultural practice of plowing.
For example:
Brazil is one of the greatest GHG producers in the world despite it relatively small population and low level of industrialization as evey time a tree is cut down or a field plowed to expose to oxidation some of the organic material that was buried in the soil, this is man-made "negative photosyntheseis." - I.e. photosynthetically removed carbon is returned to the atmosphere as CO2 once angain.
SUMMARY: "Mother nature" can not keep up with the RATE of man's production of CO2 or do anything to rapidly remove some of the compounds that man has released because they are "un-natural" - never before existed and nothing has evolved to "eat them" etc.
PS
Because of the rapid RATE of distrubance man is causing, it is possible, but I think (but do not know and only hope NOT) that a terrible positive feed back loop may be started or even already now acting. For example of very serious one (there are others and they can jointly interact to create the "greater than unity loop gain" discussed now):
It is completely obvious that the ice covering the Artic Ocean will be destroyed in less than a century. This will convert a large surface area from a 90% reflector of sunlight into an 80% absorber and heat the Artic Ocean significantly. There is no doubt considerable menthane hydrate on the Artic Ocean floor (and in the surrounding tundra of the near shore lands, which will also certanly release huge quanties of both CO2 and CH4 into the air). This surge of atmospheric CH4 will further increase the GW as on a per molecule basis, CH4 is much stronger GHG. I.e.
IF the "unity gain" threshold is breached of this positve feed back loop, then ALL life on Earth will die, not just mankind, probably in less than a 1000 years, because Earth will become a slightly cooler version of Venus. I.e. The atmosphere of Earth will be hot high-pressure steam, as the oceans slowly boil away into space.
Also it should be mentioned that the warming of the ocean surfaces, which has been noted already beyond doubt, is DECREASING the ability of the oceans to absorbe CO2 (Cold water can hold more than warm H2O.) this may be one of the significant contributors to a net loop feed back gain greater than unity.
SUMMARY: Gore may be wrong, probaly is a rationallizing hypocrite, at least to some extent, as he jets around spreading his message, but I for one do not want to bet the fate of all life forms on Earth on this being the case. I think it only to reasonable "to play it safe" and hope that the positive feed back loop can still be avoided (has not already gone past the point of no return.)