Bjork and Thom Yorke have recorded a new song together, which aims to highlight the issue of climate change in Iceland.

features the Radiohead singer on backing vocals, and it was released digitally today.

"It is now more important than ever before to emphasise a respect for nature," said Bjork. "I believe that profits, technological advances and working together with nature can all go hand in hand. None need to be sacrificed at the expense of the others."