Lede is deliberately misleading Global Warming has only been occurring since the 20th Century Hell that s not only mislead but it s an outright lie apparently inserted for the ulterior purposes advancing left wing political agendas Global Warming is NOT a new phenomenon In fact it has been steadily progressing for the last 12 000 years since the last ice age Warming itself is a loaded term implying that there is a pristine correct temperature A more accurate term would be global thawing as that s precisely what happens when the planet comes out of an ice age