"the pacific decadal oscillation (pdo) is a temperature pattern in the pacific ocean that spends roughly 20-30 years in the cool phase or the warm phase.
"the pacific decadal oscillation (pdo) is a temperature pattern in the pacific ocean that spends roughly 20-30 years in the cool phase or the warm phase.
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.