> >
> >> The Vostok ice cores showed that CO2 levels *lag* temperature levels
> >> rather than leading them, over a time span of some hundreds of thousands
> >> of years.
>
> > That's quite an old chestnut now. See eg:
>
> >formatting link>
> Interesting.
>
> The presenter said in short that the CO2/temperature issue was one of
> one sometimes leading, and sometimes following, the other, the
> perturbing agent being Milankovich cycles,
>
> Unfortunately, this raises more questions than it answers. One such is
> that where in the Vostok record is this shown? What records do in fact
> show this? What is the mechanism whereby a lead changes to a lag? >
> And the big one: if this is all caused by the influence of Jupiter and
> Saturn's gravity fields, why are we being strongly encouraged to go
> vegetarian, and not to till the soil, in order to help the planet? (BBC
> R4 'news' this morning). Eating soyaburgers won't perturb Jupiter at all. >
> --
> Spike
It is not Jupiter that is causing the rise in CO2 this time; it is civilised mankind.