Leaded petrol, acid rain, CFCs: why the green movement can overcome the climate crisis

Guardian environment correspondent Fiona Harvey discusses why the last 50 years of environmental action have shown how civil society can force governments and business to change and why that should give campaigners optimism for the future Faced with multiplying and interlinked environmental crises in the 2020s – the climate emergency, the sixth extinction stalking the natural world, the plastic scourge in our oceans – it is easy to feel overwhelmed, Guardian environment correspondent