The only problem with this comparison is the amount of timber/plantlife/trees. When Dino, Fred's little buddy was around there was many more X's the plant life then what we have today. The planet could easily handle the CO2 levels of that time. Can it handle what we are giving off now? I watched a show the other night about how America has changed since the "1st settlers"{pilgrims}. We have lost most of our trees/forest{compared to then}, and now the demand is even higher. Trees are a renewable source, BUT only if we do things correct. It is funny how 1 race could live with nature and supply their needs, then another comes along and destroys allmost everything. In the end no matter what happens, global warming, disappearing of natural resources etc.... GREED is the real problem!
I didn't see the show, so I can't comment on it.
I've been to a few museums that have shown pictures of what the area looked like back in the 1800's and then pictures taken today. In every case, there are more trees today then back then. While this is just in those area, and the focus was more on managing forest fires, logging and the changes to the land in the last 200 years, it's still pretty dramatic evidence that some areas have more trees then before.
And then there is the real problem with global warming and climate change. It's not that the temperature of the planet varies and has an up and down cycle. That's part of nature and will happen no matter what we humans do.
The real problem is that the so called scientist are lying about the temperatures that they are recording and destroyed all the original readings. To prove that CO2 is responsible for the rise in global temperatures, they went to Siberia to measure tree rings. Of all the trees that they checked, they found one that matched up with what they wanted. No other tree had tree rings that worked, so all that evidence was dismissed, and that one tree is the proof that they have for CO2.
Throwing away evidence that doesn't fit their goal is not science, and it's proof that they don't have anything to support this. The Russians have been confronting them about changing their temps for years. Just a few months ago, it came out that they were using August Temps for three months, instead of the lower temps that occur in Fall. It's really sad when the Russians are the only source correcting East Anglia and their man made science.
More trees, less trees. We just don't know anymore because so much of the science is fabricated. There is allot of talk about CO2 levels following global temperatures. If the planet gets warmer, then the atmoshere can and does hold more CO2. As the planet cools, more CO2 gets absorbed back into the planet.
It's almost like God has had enough of this trickery and is now making fools of all the Global Warming crowd. Ten years of the planet cooling and every time they have a summit or confrence on Global Warming, a cold front arrives.
Eddie