World's sea-ice falls to record low

Mark Poynting and Erwan RivaultBBC Climate & Verify data journalism teamsGetty ImagesThe world's frozen oceans, which help to keep the planet cool, currently have less ice than ever previously recorded, satellite data shows.Sea-ice around the north and south poles acts like a giant mirror by reflecting much of the Sun's energy back into space.But as rising temperatures cause this bright layer to shrink, the dark…