Climate change from a vintner

I found this wandering thru comments on a blog today in a spare moment...

I have a sticking point with the ‘science of global warming’. It’s not global. In fact, it is confined in the main to the Northern Hemisphere. If ‘greenhouse theory’ were correct, warming would be seen in all places and in all seasons. But, the advance in temperature is mostly in the winter and spring. There is an obvious cause for this and it’s the heat stored in the oceans as a result of episodes of tropical warming that are described as ‘El Niño’ events after the most obvious manifestation in the Pacific Ocean.

More here (PDF) (slow as a wet week to download)