Global Cooling

(Fox News) - The leader of a group of Canadian scientists says global warming isn't the biggest climate threat to the planet — global cooling is.

Ottawa-Carleton Geoscience Centre director R. Timothy Patterson writes in the Financial Post that core samples from the bottom of deep western Canadian fjords indicate climate change correlates to solar cycles of varying lengths — and show little correlation between climate change and carbon dioxide levels.

Patterson writes that the sun will begin its weakest solar cycle of the past two centuries by the year 2020. He says that could lead to unusually cool conditions that could threaten agriculture in extreme northern regions.

Global cooling isn't a new idea — a famous TIME Magazine article raised the possibility of another Ice Age — back in 1974.