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Researchers at Dalhousie University have discovered a decrease in freshwater on Sable Island that is likely connected to climate change and is a warning about the danger facing small islands around the world.
Cantelon said the research shows that where dunes have remained intact, there was no difference in fresh groundwater, but in other areas there is less. The water in the middle of the island, where the dunes are still healthy and where ponds that the horses usually drink from are found, is still in good condition and the same as in the 1970s. But, Kurylyk said, because the horses are known to dig down half a metre to a metre to the water table to drink groundwater, the findings mean that they may not be able to get that water in as many places as they're used to drinking.
Kurylyk said 10 per cent of the world’s population lives on islands, “and those islands are changing in response to sea level rise and intensifying coastal storms, so our work on Sable Island is transferable to a lot of more populated barrier islands, like the sandy islands you see along the eastern coast of the U.S. and places where you see a lot of people.”
“There’s a classification of countries called small island developing states, and a lot of them have lower socio-economic status and a lot of them are fairly remote ... so to get fresh water out to them would be really challenging,” Kurylyk said.The study raises alarm bells about the ongoing and growing impacts of climate change.
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