African countries aren’t doing enough to prepare for rising sea levels

Sally Brown, University of Southampton

Sea levels are rising
around the world. In the last quarter century, on the north-eastern
African coastline, sea levels have risen by as much as 12cm. The future
looks even more worrying.

Some of the more optimistic global climate change projections, which
consider a reduction in greenhouse gas emissions, indicate that sea
levels could rise to 0.40m by 2100. But if we don’t reduce emissions enough, sea levels could rise to 0.78m
by 2100. This scenario could pan out if countries don’t reduce their
carbon emissions. High emissions mean increasing global temperatures,
which causes seawater to expand and ice over land to melt – both of which can cause a rise in sea level.

Sea level rise is inevitable. Some countries are already considering –…

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