Dear TomBie,

I thought Arrhenius' principal contribution was in showing how the atmospheric greenhouse gas effect worked.

CO2 level at the start of the Industrial Revolution was 280ppm and is currently running at 385ppm and this increase has been shown to have been caused by human beings burning fossil fuels. This increase in CO2 has resulted in a rise of about 1.6 deg C in average global temperature over the past 230 years and if it gets to 560ppm will result in an average rise of 6 deg C, at which point sea temperatures at the Equator will be around 30+ deg C and some parts of the Earth will begin to boil.

The problem of global warming with its effects of climate change, droughts and floods, etc along with causing diminishing fresh water supplies, consequential famines, etc is now so big that it cannot be fixed and we are now looking down the barrel at our own extinction event.

science has continually become dumbed down and full of group think since our Creator was written out of the texts and replaced with the total irrationality of something from nothing. Hilarous to hear the jokers saying we are making ourselves extinct while believing we are evolving to a higher level. Can't be both although I know you are unable to think past your dogmas. To many now on the gravy train and unless we get some brave people like Izzy in the field of science it will continue down the toilet. God however will laugh at the stupidity and arrogance of those 'true believers' who think man can control the climate. Meanwhile the charlatans in the UN, the Gores and alarmist will continue to fill their pockets by proclaiming the nonsense they do.

The only evidence of dumbing down and locked to dogma as demonstrated in these pages is every contribution by a scientific illiterate runner.

Who almost never ever, misses an opportunity, regardless of the topic to push his hate speech agenda and megalomaniac homophobic meltdown!

Q: Was a never ever married, 33-year-old Jesus a homosexual? When all Jewish boys were partnered as early as thirteen and possibly consummated their arranged unions as early a fifteen, runner?

And, should all left-handed humans be condemned to hell for daring to masturbate with the left rather than the right hand? Or just for masturbation, regardless of the hand used, runner?
Alan B.

"So therefore, would you have us sit on our hands and do nothing about reducing the amount of CO2 in the atmosphere.
David"

Don't bother sitting on your hands, David. Just forget about it because it's irrelevant and I'm surprised you give it any credence at all, given that you previously had access to the research services of the federal parliamentary library.

Percentage of C02 in the atmosphere? 0.04 per cent. Percentage generated by humans? 3.0 per cent of 0.04 per cent. Percentage generated in Australia? 1.3 per cent of three per cent of 0.04 per cent. I can't be bothered calculating that final number, but from memory it has at least four zeros after the decimal point.

Of course, if you can demonstrate a dangerous causal relationship between carbon dioxide and any significant effect on global average temperature (if such a concept is in any way meaningful*) then a Nobel Prize is yours. Strange that nobody has been able to do that, right? And the scam has been running since the mid-1970s.

Percentage of water vapour in the atmosphere? Four per cent. Water vapour is far and away the most powerful greenhouse gas, probably accounting for about 60 per cent of the warming effect. But there's no money in scamming research grants about water vapour.

http://www.acs.org/content/acs/en/climatescience/climatesciencenarratives/its-water-vapor-not-the-co2.html

*If it's -30degC in Moscow and +30degC in Sydney, the average is...? And is that number useful in any way?

thanks Alan b your usual bile is becoming predicable.

So is yours Runner, so just get down off your high horse.