change conference, cop26, begins in a week on sunday in glasgow, rising sea levels will be one of the many issues on the agenda. now a radical scheme in norfolk in eastern england is gaining attention after millions of tonnes of sand were moved to protect two coastal villages and a gas terminal back in 2019. the project seems to have successfully slowed the erosion of the nearby coast. with more, here s our science correspondent, rebecca morelle. this might look like fun at the norfolk seaside, but this jetski is doing a vitaljob. equipped with hi tech kit, it s measuring exactly how much sand lies beneath the waves. in 2019, in a radical experiment, millions of tonnes of sand were shifted to bacton, creating a vast dune stretching for four miles. the hope was it would protect this the bacton gas terminal, at risk of falling into the sea. when the sand was placed two years ago, it raised the beach to here,
correspondent rebecca morelle. this might look like fun at the norfolk seaside, but this jetski is doing a vitaljob. equipped with hi tech kit, it s measuring exactly how much sand lies beneath the waves. in 2019, in a radical experiment, millions of tonnes of sand were shifted to bacton, creating a vast dune stretching for four miles. the hope was it would protect this the bacton gas terminal, at risk of falling into the sea. when the sand was placed two years ago, it raised the beach to here, seven metres up the cliff, and it gently sloped down to the sea. since then, several big storms have hit, and now you have this, a drop carved out by the waves. but the sand that was down here has moved into the shallows, creating a sand bar, and it s this that s breaking the energy of the waves, protecting the coast.