BBCNEWS BBC News June 4, 2024 22:47:00
If you live in the green, it's easy to forget what life is like in the grey. the air literally can smell sweeter, and it's definitely cleaner. the world health organization says air pollution poses a major threat to health and climate, and it kills an estimated seven million people worldwide every year. now we're not all going to move back to nature. but what if we could bring nature into the cities? just outside berlin, this company is trying to freshen up our urban air. this is a bio filter which is sucking air in through the bottom and pumping it back out through this wall of moss. to illus...