A new way to clean polluted air is being developed, using lots of moss! The plant's leaves attract and bind particulate matter. Citydwellers would breathe more freely. Also on the show, a ship tunnel in Norway, and plans for a circular runway.
The German city of Stuttgart is struggling to overcome its huge air pollution problem. There are options to reduce the environmental risks. Amongst them - a wall covered with moss.
The Paris Agreement sought to place a lower limit on global warming at 1.5 degrees Celsius. But researchers fear that may already be locked in - even 2 degrees may be overshot. All the more reason for action, many say.
With temperatures soaring and drought increasing, many in Africa are losing their livelihoods. They are looking for other ways to survive, in some cases by turning to groups like Boko Haram.
The collapse of fisheries, decline of coral reefs and drought are all hitting Madagascar hard. But fishermen are coping with scarce and stressed resources in the Indian Ocean by coming up with new alternatives.
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