NASA on GLOBAL CLIMATE CHANGE : WHAT'S A ZETTAJOULES?

CLIMATE NASA on VITAL SIGNS OF OCEAN WARMING 

Excerpt: Heat stored in the ocean causes its water to expand, which is responsbile for one-third to one-half of global sea level rise. Most of the added energy is stored at the surface, at a depth of zero to 700 meters. The last 10 years were the ocean's warmest decade since at least the 1800's.