The world's oceans absorb approximately 25% of all of the CO2 that is emitted
The Arctic Ocean covers an area of 14,056,000 km2 and has a fairly constant temperature of 0 degrees Celsius
Sea ice loss and ocean warming is already affecting habitats of this sensitive region
The effects of OA and climate change on food webs in the Arctic are not known
Many high-latitude marine organisms exhibit low metabolic rates and very slow development and growth rates when compared with similar taxa at mid or low latitudes
Fewer generations will have opportunities for successful acclimation or adaptation to seawater that will become progressively elevated in dissolved CO2
Modeling studies suggest that Arctic Ocean will experience aragonite undersaturation by the middle of this century (Orr and others, 2005; Cao and Caldeira, 2008) and, possibly, as early as the next decade (Steinacher and others, 2008; Feely and others, 2009).
Declining aragonite and calcite saturation states of surface waters—and establishment of corrosive conditions in some regionsmay impact high-latitude planktonic and benthic calcifiers
Video Podcast - Ocean Acidification: Research on Top of the World
The Arctic Ocean is one of the most unique bodies of water on the planet. It houses large charismatic predators like polar bears, whales, and seals; critical species like shell fish and phytoplankton; and an array of organisms found nowhere else on Earth. The Arctic Ocean is also the most inaccessible and least explored ocean. Its remoteness has kept it ecologically pristine. But the Arctic is where climate change impacts are strongest and where global changes are underway.