There is a climate crisis, extinctions are accelerating, forests are disappearing, water cycles are collapsing and pollution is choking our skies and seas. It is easy to be defeatist about the fate of our planet. And yet, despite it all, it's not too late: things can change for the better. Fred Pearce has been reporting from the frontline of climate change and environmental recovery for over four decades and what he has seen has give him reason - in fact, seven reasons - for (cautious) hope. Here, we learn how nature is finding ways to thrive in unexpected places, how the population bomb has been defused, how our consumerist societies are finally approaching 'peak stuff', and how a combination of ancient wisdom and modern technology can help us correct our course.