New Science: 89% Of The Globe’s Islands – And 100% Of Large Islands – Have Stable Or Growing Coasts

Iowa Climate Science Education

Rapid sea level rise was supposed

to shrink Earth’s coasts. It hasn’t.

Image Source: Mörner, 2018

Over the past decades, atoll islands exhibited no widespread sign of physical destabilization in the face of sea-level rise. 88.6% of islands were either stable or increased in area, while only 11.4% contracted. It is noteworthy that no island larger than 10 ha decreased in size. These results show that atoll and island areal stability is a global trend, whatever the rate of sea-level rise.”- Duvat, 2019

Image Sources: Donchyts et al., 2016 and BBC(press release)

I. Despite sea level rise, “the coasts are growing all over the world”

Sea levels aren’t rising fast enough to deleteriously affect coastal areas on a net global scale.

Satellite observations indicate there has been 13,565 km2 of net growth in land area across the globe’s coasts between 1985-2015.

In other words…

View original post 2,275 more words

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