Wow, that's impressive. I don't think I've seen anyone pack more mistruths, distortions and misconceptions into such a short space before.
Have you even *looked* at the science, or do you just accept everything the oil industry tells you as gospel truth?
Okay, then, let's look at what you said:
Human contribution to atmospheric CO2 is 0.001%: Pre-industrial CO2 was 285ppmv, it is now 380ppmv. That means that humans have put an extra 95ppmv into the atmosphere, or 33% of the pre-industrial level. Not really that insignificant, is it?
"We produce 3.5% of total carbon": There is this thing called the carbon cycle - animals breathe out CO2, and plants and algae breathe it in. The vast majority of the CO2 produces gets consumed, but not all of it. What's left over is the concentration that can be measured in the atmosphere. Before the industrial revolution, this bit left over was about 285ppmv. Guess what, that 285ppmv deficit is still there! It didn't go away! The little bit extra we are producing from fossil fuel is enough that it can't all get consumed, so the concentration goes up, and will keep going up as long as we keep burning fossil fuels. We know this, because the CO2 from fossil fuels has a different isotope signature to the CO2 produced by animals.
"climate that has previously seen levels ten times as high": ten times as high what? Temperature? I'd love to know where you got that data from - I must have missed the bit in the ice core data where all the earth's water boiled away into space. Yes, climate has varied in the past - both hotter and colder - but so did the sea levels. When it was hot, the sea was much higher. When it was cold, the sea was much lower. Now, genius, tell me, where was London the last time the earth's temperature was 4 degrees higher than today? Oh that's right - London didn't exist then. What are we going to do, pick up London and move it somewhere higher up?
"Temperatures are dropping (now down to nearly 1979 levels)": Again, have you actually looked at the data? Here they are: http://data.giss.nasa.gov/gistemp/tabledata/GLB.Ts.txt
In 1979, the temperature anomaly (compared to 1951-1980 baseline) was 0.10 degrees. Last year, which was a bit cooler than the two previous years, it was 0.55 degrees. Now, call me old-fashioned, but I think that 0.55 is bigger than 0.10, so that makes me think that it is actually getting hotter, not cooler. But please do tell me about the amazing new maths you've discovered that says temperatures going up means the world is getting cooler.
"sea levels are pretty static": Significant sea level changes are only expected once the temperature anomaly gets well over 1 degree. It is still only around 0.6 degrees. Your point?
"arctic ice is melting more slowly than expected (ask the Catlin expedition)": Okay, I asked the Catlin expedition, and they said that in fact the Arctic ice is much thinner than they had expected, and multi-year ice is at an all-time low. Again, I'm not quite sure how you arrive at this deduction - less ice than expected suggests to me that it is melting quicker than expected.
"Not much to base punitive taxes and energy policy reversals on, is it?" Ah, now we come to the heart of the matter. Think about it for a minute - who exactly would be paying the taxes for CO2 production. And who exactly would be losing out if energy production moves away from fossil fuels? Oh, the fossil fuel industry.
And who put those factoids into your head? Oh, the fossil fuel industry.
Makes you think, doesn't it? Well, probably a bit late for that in your case...