Irish bog oaks give clues about global warming (not due to solar activity)

[highplainsdem]

http://www.timesonline.co.uk/article/0,,2091-1828523,00.html


Irish bog oaks give clues about global warming
John Burns


CLAIMS that increased solar activity is the cause of global warming have been undermined by a study of Irish bog oak trees.

An international group of scientists has studied 750 trees excavated from bogs in Northern Ireland, dating back 7,648 years. Their research found cyclical changes in the climate, but no link with solar activity.

“The data shows that there is no simple one-to-one relationship, as some researchers have touted,” said Chris Turney of the University of Wollongong in Australia who led the study.

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“This feeds into the big question about climate change at the moment — it is consistent with humans driving present-day change. If it is the sun, it’s a lot more complicated than many people have claimed, and this is of enormous importance to the global-warming debate.”

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