when the pdo last switched to a cool phase, global temperatures were about 0.4c cooler than currently.
when the pdo last switched to a cool phase, global temperatures were about 0.4c cooler than currently.
pacific decadal oscillation:56
the 2014 flip from the cool pdo phase to the warm phase, which vaguely resembles a long and drawn out el niño event, contributed to record-breaking surface temperatures across the planet in 2014.