Earth Day: 5 fresh eco books about the planet you should read

Power-generating windmill turbines are seen during sunset in Bourlon, France. Photo: Reuters

With Earth Day taking place today, look to these five new books about the planet, from a Bill Gates bestseller to a children's book about polar bears.

Because of the Covid-19 pandemic, the world is thought to have emitted about 5% fewer greenhouse gases last year than the year before. That means releasing the equivalent of 48 or 49 billion tonnes of carbon, instead of 51 billion.