Governments opt for more coastal protection

Shaping the sand at Bacton. Credit: Royal HaskoningDHV-Chris Taylor

There have been numerous studies concerning climate change affecting sea levels globally, but perhaps the most generally accepted is a 2019 study that, relative to 2000 levels, projects a sea level rise of 30 cm by 2050 and 69 cm by 2100. Nations are starting to take action

There are essentially three ways a country can respond to sea level rise: retreat, accommodate, and protect. In the US state of Louisiana, the Coastal Protection and Restoration Authority is investing in the third option – protection.

It has an unprecedented 28 major coastal restoration and flood protection projects under way during 2020, with a total value of USD1.97 billion and backed by the federal RESTORE Act. Those projects will result in over 56 million m3 of sediment dredged to create or nourish about 45 km2 of land, compared with an expected loss of 31 km2 of land.

This is an excerpt of the DPC March edition. To have access to the full article, and more DPC features, please subscribe here.