From Antarctica to Australia, a British composer has captured sounds of nature around the world and put them together in a seven-hour body of work released to mark Earth Day on Thursday.

Ted White began collecting the recordings that range from caimans in the Amazon river to storms off the north coast of Scotland in 2015.

The release comes as people around the world mark annual Earth Day in support of protecting the environment.

"I wanted people to get truly immersed within them and to take inspiration from them and realise how important a day like Earth Day is," he said. "To take note on these sounds and how we can look after the environment essentially".