On 23/05/13 14:33, John Williamson wrote:
Simon Brown wrote:

"harry" wrote in message
The other factor of course being global warming which will
disprupt agriculture however it manifests itself.

With relatively cold places like Britain, it may well be a good
thing for agriculture if it actually does produce some warming.

The global warming theory says that while the average global
temperature will increase, local effects will often differ greatly.
For instance, if the Arctic ice melts enough, the North Atlantic
conveyor current may well slow down or stop, reducing the amount of
heat it brings North. This will give the UK colder winters and,
probably, wetter Summers.

And cause the arctic ice to reform...that's the bit they always leave
off, isn't it?

Or maybe, hotter, drier Summers. The
increase in CO2 is likely to have more effect on crop growth than any
temperature changes here.

Anything is possible of course if you cherry pick ideas that suit a
preconceived agenda.

http://www.youtube.com/watch?v=cdxaxJNs15s


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