"We've planted small fir trees in the fenland so that it doesn't get too wet." Fens? Too wet? Nina Liechti is talking about climate change, the main subject of her innovatively named project "My Clime-Mate".
Too much waste damages the environment. The Refiller Community project wants to curb this problem by enabling people to buy take-away meals and drinks in reusable boxes and cups.
weACT organizes competitions to motivate people to adopt a more sustainable lifestyle.