As COP24 begins in Poland, climate activism is rippling around the world. The Extinction Rebellion movement has taken off, can it succeed, asks Georgina Treloar
Can blockchain and tokens help to address fraud and waste in the seafood sector? An initiative called Fishcoin is about to put this to the test.
With 65 per cent of settlements classed as 'informal' and lots of natural threats, Ecuador's capital has some clear themes as it builds its resilience