Hundreds of miles of beaches in South Florida have been covered in tonnes of stinky sargassum seaweed.

Drone footage captured in Delray Beach by Larry Richardson today (April 21) showed the scale of the problem.

Experts say the sargassum is getting worse every year due to global warming and an excess of man-made nutrient-rich runoff flowing into the ocean.

Coastal communities are searching for ways to deal with the stinky, scratchy seaweed, which can be a turn-off for tourists.

Some cities and towns plough it into the sand, others truck it to landfills.

Just as the invasion of spring breakers comes to a close in South Florida, tons of stinky, scratchy sargassum seaweed is coating hundreds of miles of beaches. Experts say the sargassum problem is getting worse every year due to global warming heating up the seas and an overabundance of man-made nutrient-rich runoff flowing into the ocean. Coastal communities from the Caribbean islands to Mexico and Florida are searching for ways to deal with the seaweed, which can drive away tourists. Some cities and towns plow it into the sand, others truck it to landfills. The problem is likely to get worse as humans continue to burn fossil fuels that are driving ocean warming and over-fertilize crops and lawns. This land and drone video was recorded in Delray Beach, Florida.