HumansIf we can't change the world, does anything we do matter? It’s easy to be disheartened by the puniness of our existence – yet perhaps for the first time in human history, everything depends on decisions each one of us makes Features
EnvironmentWe need to talk about how population growth is harming the planet Discussions of population's impact on Earth have been off limits, but scientists and conservationists are challenging the taboo and politicians must do the same, says Graham Lawton Comment