Extreme weather changes can be natural. The earth has no contract with humans to keep the weather regulated perfectly. Actually that is the question we are try

Extreme weather changes can be natural. The earth has no contract with humans to keep the weather regulated perfectly. Actually that is the question we are trying to answer when we look at past trends. Is this manmade (if so we can reverse it)? But the sad thing is that we don't have an techniques that can reliably do it. So we take the best we have and declare with unjustifiable certainty, "facts" about past temperatures..