This is what I think - the earth goes through regular warming and cooling periods, sometimes they are set off by a catastrophic event such as the meteor that wiped out the dinosaurs. Sometimes it is much slower. Remember the Darwinian quote? Survival of the fittest. Some dinosaurs were able to adapt or move in order to preserve themselves. Look at the Komodo Dragon - it has done incredibly well over the milleniums. Others did not fare so well and died out either from dehydration and/or starvation or from overheating or from hypothermia. There is evidence of this in certain parts of the world where geologists are able to look at the different rock layers, study them and come to the conclusion that at one point in time this area of land was either covered with ice or was once and ancient swamp with many jungle like features including swamp gases that would have been at toxic levels for us but evidently OK to the animals that lived in the place some billion years ago.
Even during the past two centuries we have seen extreme climate changes. Remember Krakatoa? Remember the flash over northern Russia that sent an expedition of scientist through frozen swamps only to find trees laid flat for miles but no sign of what caused it?
Remember the year with no summer were many people died of starvation due to a very short growing season?
Google it up - its all there. This warming is simply a trend we are going through, it'll continue to warm for a number of years then it will cool down again - but on the whole - yes there is global warming - its just not going to happen at the rapid pace that the media is wanting you to believe. And I agree that we do need to be on the verge of using all renewable resources and we do need to be a little more eco-friendly and conscious because we are wiping out certain habitats with the urban sprawl such as wetlands are being taken out with large farms due to the demand for ethanol. This is something thats going to be debated over for years.
