Patrick Moore knows more about the history of the Earth's climate (including CO2) than anyone I have come across.

Short vid:

https://www.youtube.com/watch?v=bQDHWzGMfe8

Long lecture:

https://www.youtube.com/watch?v=Ladoo2fYLkw

That long lecture is very recent (just weeks ago). I have not seen it, but I have seen others.

Update: I just took a quick look, and this one is probably better for an overview of the subject:

https://www.youtube.com/watch?v=GXBBNcAvCsU

He has tons of facts, statistics, charts, and goes an execellent job of explaining what you are looking at. He takes no prisoners, and has no time for the climate change alarmists.

Patrick Moore knows more about the history of the Earth's climate (including CO2) than anyone I have come across.

Short vid:

https://www.youtube.com/watch?v=bQDHWzGMfe8

Long lecture:

https://www.youtube.com/watch?v=Ladoo2fYLkw

That long lecture is very recent (just weeks ago). I have not seen it, but I have seen others. He has tons of facts, statistics, charts, and goes an execellent job of explaining what you are looking at. He takes no prisoners, and has no time for the climate change alarmists.