Unfortunatly for Gore, he also said he invented the internet. Should you believe any polititian? i would have my reservations with that.
The fact is that the temperature of earth has constantly been changing. We dont have accurate records from a longer period of time to really compare the data. We all know that the temperature of earth changed on its own. And saying that temperature increased .5 C over last 30 years due to the human activities must not be taken with seriousness.
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