Now she investigates the immense challenges humanity faces as we scramble to reverse, in a matter of decades, the effects we've had on the atmosphere, the oceans, the world's forests and rivers - on the very topography of the globe. In Under a White Sky, she takes a hard look at the new world we are creating.The author of the international bestseller The Sixth Extinction returns to humanity's transformative impact on the environment, now asking: after doing so much damage, can we change nature, this time to save it? CHOSEN BY BILL GATES AND BARACK OBAMA AS A SUMMER READMeet the biologists trying to save the world's rarest fish; the engineers who are turning carbon emissions to stone; the researchers trying to develop a 'super coral'; and the physicists contemplating shooting tiny diamonds into the stratosphere to cool the earth.Elizabeth Kolbert is one of the most important writers on the environment. Here she investigates the immense challenges humanity faces as we scramble to reverse, in a matter of decades, the effects we've had on the natural world and asks - can we save the natural world in time?