I've been screaming this same message now for about two decades or so, ever since Algore started his crazy "the sky is falling!" bullshit.
However, I think saying the earth has been warmer than now for 80% of it's existence may be a low estimate - I only know of 3 cooling periods in Earth's history, and it has been warmer, usually MUCH warmer, at all other times. Those 3 cooling events are 1)the "snowball Earth" incident, where the entire planet froze over all the way to the equator, and stayed frozen for a couple million years, 2) the end of the Carboniferous period into the Permian, when the Earth cooled, ice caps formed, and mass extinctions took place due to a dearth of warmth - the Carboniferous rain forest collapsed during that time, and the Permian had a number of extinctions as well as getting much dryer due to the cooling, and 3) the Pleistocene/ Holocene cooling event, what we call "the ice ages" now, which we are still in, which is what explains currently below-average temperatures.
All other times, the Earth has been warmer than now, sometimes vastly warmer. For example, in the carboniferous Period, average temperatures were about 14 degrees (F) higher than right now, world wide, and life flourished. That is what gave us the current coal fields. Also, during that era, CO2 atmospheric levels were about 400% of current levels, which is why plant life flourished. On the negative side, oxygen levels were about 50% higher than currently, 32% or so as opposed to the current 21%, which created a fire hazard, so there were more forest fires (sparked by lightning and such), than there are now..
During the Permian, deserts spread like wildfires, and covered much of the Earth, because so much of our water was getting locked up in ice caps, no longer available to allow plant growth.
This whole "climate change" religious hysteria is just that, and probably for the reasons stated in that article.
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However, I think saying the earth has been warmer than now for 80% of it's existence may be a low estimate - I only know of 3 cooling periods in Earth's history, and it has been warmer, usually MUCH warmer, at all other times. Those 3 cooling events are 1)the "snowball Earth" incident, where the entire planet froze over all the way to the equator, and stayed frozen for a couple million years, 2) the end of the Carboniferous period into the Permian, when the Earth cooled, ice caps formed, and mass extinctions took place due to a dearth of warmth - the Carboniferous rain forest collapsed during that time, and the Permian had a number of extinctions as well as getting much dryer due to the cooling, and 3) the Pleistocene/ Holocene cooling event, what we call "the ice ages" now, which we are still in, which is what explains currently below-average temperatures.
All other times, the Earth has been warmer than now, sometimes vastly warmer. For example, in the carboniferous Period, average temperatures were about 14 degrees (F) higher than right now, world wide, and life flourished. That is what gave us the current coal fields. Also, during that era, CO2 atmospheric levels were about 400% of current levels, which is why plant life flourished. On the negative side, oxygen levels were about 50% higher than currently, 32% or so as opposed to the current 21%, which created a fire hazard, so there were more forest fires (sparked by lightning and such), than there are now..
During the Permian, deserts spread like wildfires, and covered much of the Earth, because so much of our water was getting locked up in ice caps, no longer available to allow plant growth.
This whole "climate change" religious hysteria is just that, and probably for the reasons stated in that article.
.