Not that this is the appropriate forum to discuss this, but here goes...
Just love how easy it is to attract the nitpickers. LOL
Now answer the questions, please:
By what mechanism does a greenhouse work?
Why is the planet different from a greenhouse?
Be as detailed as you can be, because I'll be tearing apart your answer at a later time.
And now for Yet Another Inconvenient Truth (I've got hundreds of them to embarrass the AGW sheeple):
The effectiveness of CO2 as a greenhouse gas becomes ever more marginal with greater concentration | Watts Up With That?
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According to well understood physical parameters, the effectiveness of CO2 as a greenhouse gas diminishes logarithmically with increasing concentration and from the current level of ~390 ppmv, (parts per million by volume). Accordingly only ~5% of the effectiveness of CO2 as a greenhouse gas remains beyond the current level.
Remarkably, IPCC Published reports , (TAR3), do actually acknowledge that the effective temperature increase caused by growing concentrations of CO2 in the atmosphere radically diminishes with increasing concentrations. This information is in their report. It is well disguised for any lay reader, (Chapter 6. Radiative Forcing of Climate Change: section 6.3.4 Total Well-Mixed Greenhouse Gas Forcing Estimate).
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Now... you were saying?
If you believe the AGW schtick, you're being lied to and manipulated for the monetary gain of others. Do your own research, you'll find that solar and orbital forcing are (and remain) the major contributing factors to global temperature change... and we're heading into a solar and orbital forcing period which will cool the planet. It's predicted it'll be a similar amount of cooling as during the Little Ice Age... except it'll last approximately 10,000 years.
The ClimateGate 2.0 hacked emails show the climate researchers know this... they were discussing "coordinating their message" because telling people to prepare for AGW
and an ice age seemed incongruent to the message they'd been putting out for years now.
It's ridiculous to claim that a tiny percentage of CO2 (currently 0.04% of atmospheric gas composition) has any effect in comparison to that giant fusion furnace in the sky that we call our sun.