Judas

massive astroids hitting the planet.. etc.

While i agree that we don't have a very good idea of what's happened beyond 100 years for weather conditions, you'd be serprised how accurately they can figure out what temperatures and weather conditions were like over the last few thousand years, right up to differences from one million and another million years just by looking at the vegitation and presure points and soil samples.

Most of the natural heat disturbances are quick and fast, causing very little for climate change of a long peroid (fast climate changes happen, usually the earth goes through a recycle period where the temperatures either rise or fall rapidly, and within even just a few years, everything is reset back to normal). Where as the continued slow increase in temperatures is quite different.

Plus we all know that the unnatural mass gases we create and lose regularly is causing issues with the enviroment.

Plus you have to also consider that the more volume and serface area that we create by building structures that can capture more light and heat energy is also contributing.

While yes, i agree to some that we don't have a very good idea what's going on, we are also not sure that nothing is happening, everything is naturally occuring either.

Either case, WE DO NEED to work on making things more efficient, to reduce smog and enviromental problems and contanimants. And use products that can decompose easily.

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