Christianity is the most enduring and influential legacy of the ancient world, and its emergence the single most transformative development in Western history. Even the increasing number in the West today who have abandoned the faith of their forebears, and dismiss all religion as pointless superstition, remain recognisably its heirs. Seen close up, the division between a sceptic and a believer may seem unbridgeable. Widen the focus, though, and Christianity's enduring impact upon the West can be seen in the emergence of much that has traditionally been cast as its nemesis.

Nat, a 47-year-old veteran of Britain's Secret Intelligence Service, believes his years as an agent runner are over. He is back in London with his wife, the long-suffering Prue. But with the growing threat from Moscow Centre, the office has one more job for him. Nat is to take over The Haven, a defunct substation of London General with a rag-tag band of spies. The only bright light on the team is young Florence, who has her eye on Russia Department and a Ukrainian oligarch with a finger in the Russia pie.  

Istanbul has always been a place where stories and histories collide and crackle, where the idea is as potent as the historical fact. From the Qu'ran to Shakespeare, this city with three names - Byzantium, Constantinople, Istanbul - resonates as an idea and a place and overspills its boundaries - real and imagined. Standing as the gateway between the East and West, it has served as the capital of the Roman, Byzantine, Latin and Ottoman Empires.

England, May 1536. Anne Boleyn is dead, decapitated in the space of a heartbeat by a hired French executioner. As her remains are bundled into oblivion, Thomas Cromwell breakfasts with the victors. The blacksmith's son from Putney emerges from the spring's bloodbath to continue his climb to power and wealth, while his formidable master, Henry VIII, settles to short-lived happiness with his third queen. Cromwell is a man with only his wits to rely on; he has no great family to back him, no private army. 

An "epoch-defining book" (The Guardian) and "this generation’s Silent Spring" (The Washington Post), The Uninhabitable Earth is both a travelogue of the near future and a meditation on how that future will look to those living through it - the ways that warming promises to transform global politics, the meaning of technology and nature in the modern world, the sustainability of capitalism and the trajectory of human progress. The Uninhabitable Earth is also an impassioned call to action.