Historically the climate has always changed it hasn't shown any evidence of stopping. As far as it being a human driven event, we have made massive changes to

Historically the climate has always changed it hasn't shown any evidence of stopping. As far as it being a human driven event, we have made massive changes to the environment to say that we have caused zero impact would be incredibly foolish. On the other hand the current climate change models can't predict known data (the past) so their future predictions are highly suspect as well.