“Global warming is happening. As a society, we need to understand how species and ecosystems will respond to such change.”
Reef corals in equatorial regions are going to start moving towards the poles as climate change takes hold, scientists have said. By analyzing the ranges of reefs from the fossil record, researchers were able to build a picture of how these systems respond to climate change—and then project how they might respond under future global warming.
The study, published in the journal Royal Society Open Science, examines the fossil record for how organisms respond to different climate states over vast timescales. Looking at the last period of global warming—the Last Interglacial, around 125,000 years ago—researchers found that reef corals moved towards the poles as oceans got warmer.
Models showed that reef corals—which are the building blocks of coral reefs, sort of like trees in a forest—were greatly impacted in the equatorial regions, and this appears to be driven by sea-surface temperatures. The team predicts a substantial number of habitats suitable for reef corals will be lost as a result of warming.
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