It was a pretty good amount of replacement. Something that you wouldn't think humans would be capable of. There are a couple ways of running it. Really showed the effects of greenhouse gasses in large amounts.
I understand the trick is to guess, calculate, or imagine the effects of a smaller percentage increase on a much larger atmosphere over a longer amount of time.
Don't bother just saying the experiments have no real life meaning because the scale / percentage differences. I halfway agree. My "belief" is greenhouse gasses do hold in temperature but the exact percentage is unknown. My feeling is its better to be conservative and error on the side of caution instead of liberally dumping whenever/whatever we feel like. Don't worry though, I'm actually in favor of hard caps instead of this crazy trading system they've come up with. (We've had this discussion before)
My feeling is also to be conservative, but my conclusion is just opposite.
Right now, to feed the 6 billion or so folks breathing around here, we use vehicles driven by fossil fuel sourced energy. I have heard that the goal of our government is to reduce the emissions of CO2 to 20% of the current level.
Does anyone know when we were at that level of CO2 emission? Anyone know what the population was at that time? Anyone know exactly what percent of the global increase of CO2 that represents? Anyone know what percent of warming is currently driven by that percent of CO2?
To reach that level, we are planning planetary famine. I happen to have led a very nice life and have never in my life gone to bed hungry. There were times when I was simply too lazy to fix whatever was available, but never without food.
Think about farming. What part of the transport of seed, planting of seed, preparation of fields, fertilizing, irrigating, harvesting or transport of harvest is not driven by fossil fuel?
Famine in the USA? That is the plan.
Maybe that's not the plan and the Big 0 is just being disingenuous. Nah! That could not even be a consideration. At least some would not consider it.