EarthFinally we can power the planet on renewables alone – here's howDitching fossil fuels to go 100 per cent renewable is a dream within reach – thanks to new tech that keep things humming even when wind and sun aren’t thereFeatures
LifeOxygen may have helped complex life arise a billion years early Earth’s air suddenly got a lot more oxygen around 1.6 billion years ago and that could have triggered the evolution of large multicellular organisms 51¶¯Âþ