Changing Ocean, Marine Ecosystems, and Dependent Communities

This chapter covers both regional and global scales and across natural and human systems.Chapter 3 covers the polar regions, including their oceans, Chapter 4 covers sea level rise and its implications, and Chapter 6 covers extremes and abrupt events.This chapter uses IPCC calibrated language around scientific uncertainty, as described in Section 1.8.3.Two emissions scenarios, RCP2.6 and RCP8.5, are used for projections of climate change (see Cross-Chapter Box 1 in Chapter 1). 5.2Changing Ocean and Biodiversity 5.2.1 0-100 1970-2010 -0.38% ±1.06% -1.65% ±0.63% -1.30% ±0.54% -1.11% ±0.95% 100-600 1970-2010 -1.06% ±1.36% -3.17% ±1.34% -2.04% ±0.60% -2.09% ±1.