The Control Knob: CO2 in Earth's Climate History

I watched it. There are some flaws in the video technically or production wise for his lecture points to the graphs do not show.

Fix it in post!

Overall the lecture is worth a watch, even if you know it all.

Very even and searching from what is known, and not known.

Mr. Alley is a star quality geek, and we need more of his kind and talent.

I'd suggest that the video be redone so pointer spots showed, and that the vid image was bigger.

Certainly, which is a word I overuse, it is a great lecture from an honest and enthused scientist that adjuvant to An Inconvenient Truth illustrates the difference between a Hollywood production, and the bald truth.

I agree on the production issues and it made it somewhat difficult to follow. I really wanted to educate some of the climate change attackers on CR4 after finding this video.

Personally, I feel he left out many other sources of GHG's and other carbon sinks that the naysayers bring up such as forest fires. Also, are we not supposed to be headed for the next ice age? He brought up the point that in the past warming events forests extended up to the arctic circle. How will this expansion of trees affect the climate? If we planted forests in the thawed permafrost, wouldn't the trees grow faster than normal from the abundance of nutrients stored there?

The only other question that I have is very difficult to answer. Can humans balance the planet's GHG's through nature and stabilize the planet's climate related to GHG's? If so, how much CO2 would be in the atmosphere? How much land dedicated to forests and natural habitats? Do we really need the glaciers to survive? Could we thrive in a warmer, stabilized climate?

When I go for my MS in Environmental Engineering, I think my thesis will have to be on global climate harmonization if it hasn't been done by that time. I do think there is a profitable way for us to use nature to correct our past and current mistakes (e.g. failed Copenhagen, burning fossil fuels, etc).

Thank you for the link. I'm listening to it right now. I have not heard the name Richard Alley before so it'll be interesting to see what he has to offer in the lecture.

I read somewhere that NASA claimed global warming is a planetary phenomenon. What's happening here on earth is also replicated on the moon, mars, jupiter etc. I would be interested in knowing what component of this earthly global warming is from activity in the sun and how much of it is human based.