Mystery of why the bottom of the Pacific Ocean is getting colder might finally be solved - Mother Nature Network
Mnn.com - Sat 5 Jan 15:02 GMT

Mystery of why the bottom of the Pacific Ocean is getting colder might finally be solved - Mother Nature Network

The explanation is the perfect example of how Earth's systems operate on long timescales.

  While the oceans are getting warmer in general, including the upper layers of the Pacific, the bottom of the largest ocean in the world is actually cooling down.

  Using this, along with modern day recordings of deep ocean temperatures, researchers were able to model the circulation of water in the Pacific Ocean over the past century and a half.

  It turns out that the Pacific Ocean's water can take hundreds of years to circulate down to its lowest depths.

  Different ocean layers in the Pacific are, in some ways, like tree rings or ice core samples.

  Mystery of why the bottom of the Pacific Ocean is getting colder might finally be solved The explanation is the perfect example of how Earth's systems operate on long timescales.