Figure 6. Accretion potential of perforate corals and predicted sea-level rise.

The projections of expected rates of coral-reef accretion relative to rates of dissolution of reefs composed of mainly perforate corals, with 3 different densities of corals (low, medium and high modeled as 1, 4, and 10 kg CaCO₃ m⁻² y⁻¹), along with projections of global sea-level rise (not considering regional isostatic rebound effects, regional tectonics, and local land-use effects) and potential reef-accretion rates from 1990 to 2100 following Vermeer & Rahmstorf (2009) for different IPCC (2007) emission scenarios, where the B1 scenario is green and represents a +1.8°C global increase in temperature; the A2 scenario is blue and represents a +3.4°C global increase in temperature; the A1F1 scenario is red and represents a 4°C global increase in temperature.