The team found that mangrove and coral reef ecosystems near the tropics will likely experience the smallest cumulative change by 2100, whereas cetaceans (the group of mammals that includes whales, dolphins and porpoises), as well as pinnipeds (such as seals and walruses) will face the largest amount of change.
"We already knew that coral reefs are very susceptible to temperature change, and our models show that they are going to be impacted the least," study co-author Camilo Mora, a researcher at the University of Hawaii, Honolulu, told LiveScience. "So you can imagine what it's going to be like for other ecosystems."
The team used the compiled maps to estimate the impact these changes will have on coastal human populations whose livelihoods depend on marine resources.
Researchers considered two different climate change scenarios: one in which humans significantly cut back carbon dioxide emissions and, as a result, global atmospheric carbon dioxide levels increase from the current 440 parts per million (ppm) to just 550 ppm; and one in which humans continue emitting carbon dioxide at the current rate, under a scenario known as "business as usual," which the IPCC projects will result in an atmospheric carbon dioxide accumulation of 900 ppm by the end of the century. (Parts per million is an indicator of the concentration of a chemical in, for example, air. So in this case, 440 ppm means that there are 440 molecules of carbon dioxide in every million molecules of air.)