Youre a clown and a troll.

Posted on: August 3, 2017 at 15:38:18 CT

I certainly would not have any idea if its 20% or 60%. It is not my field. I have never claimed it to be.

Man can be a primary driver at 20%.


But the FACT is, most scientist claim Man to be a primary driver. That is called consensus.





This article could help you.
https://www.ipcc.ch/publications_and_data/ar4/wg1/en/faq-6-2.html

Specifically:
different matter is the current rate of warming. Are more rapid global climate changes recorded in proxy data? The largest temperature changes of the past million years are the glacial cycles, during which the global mean temperature changed by 4°C to 7°C between ice ages and warm interglacial periods (local changes were much larger, for example near the continental ice sheets). However, the data indicate that the global warming at the end of an ice age was a gradual process taking about 5,000 years (see Section 6.3). It is thus clear that the current rate of global climate change is much more rapid and very unusual in the context of past changes.