"What's interesting about what we're seeing here is that [the current La Niña] is starting so cold," said Bastardi, "and it's coinciding with bigger things that are pushing the overall weather patterns and climate in the Northern Hemisphere and, in fact, globally over the next 20 to 30 years that we have not really dealt with, nor can we really quantify." .
Bastardi has pointed out that the Pacific Decadal Oscillation (PDO), which is a pattern of Pacific climate variability that shifts phases usually about every 20 to 30 years, has shifted into a "cold" or "negative" phase.
http://www.accuweather.com/blogs/news/story/45220/bastardi-three-of-next-five-wi.asp
Bastardi has pointed out that the Pacific Decadal Oscillation (PDO), which is a pattern of Pacific climate variability that shifts phases usually about every 20 to 30 years, has shifted into a "cold" or "negative" phase.
http://www.accuweather.com/blogs/news/story/45220/bastardi-three-of-next-five-wi.asp
