McMikey - Can I say with respect your 'evidence' from the Science publication is a crystal clear example of the inane, meaningless crap from climate scaremongers. That entire sentance is utterly meaningless garbage both in its component and in its entirety. It has no facts, no meaning and is total dribble designed to confuse and bamboozle and is utterly dishonest in its intent (most 'spinners' take the public for fools) and is very offensive. Who authored this crud?
Firstly the fact is climate models based on CO2 are flawed. You cannot actually build a climate model as it would be too complex for even todays super-computers and it is folly to pretend otherwise. The UK weather forecasters have new Cray super-computers and they can't predict the weather for the UK tomorrow with any accuracy let alone in 20yrs!
Secondly as I've posted vehicle omissions represent less than 1% of climate CO2. It's a fact. And it is also a fact taking all the vehicles off the road tomorrow would make no difference to CO2 and have no effect on climate whatsoever. CO2 tax on vehicle omissions is a fraud.
Finally the only known effect on climate change (with the exceptions of volcanic eruptions and asteroid impacts) is the sun. Earth is 'at the mercy' of the suns fusion reactions. And its warming/cooling effects have been happening for centuries. During the Roman occupation the UK was warm enough to grow and harvest wines whilst later centuries London regulalrly endured freezing solid winters.
"Just because an acorn falls on your head, doesn't mean the Oak tree will follow". Chinese proverb.
That sums up the scaremongers what they're claiming about global warming. The climate debate has no science behind it...just scientists wanting funding!