Not all doom and gloom. The professor of economics on America's banking reforms, the risk of deflation in advanced economies and China's growth

World population. The seventh billion. The planet's population is hurtling towards 7 billion. But its growth will start to slow

Four architects describe their designs for the vertical farms of the future

A new Wallace Line? A joint American-Indonesian expedition is finding new species in the Coral Triangle at a remarkable rate

Europe: the inside story An irreverent take on how the continent's history shapes its modern geopolitics

Software programs based on game theory are being used to predict political outcomes and track down terrorists

A debilitating division. The former chancellor of the exchequer discusses his time in government, the state of the world economy and the need for ...

BrightFarm Systems is vying to run commercial greenhouses on New York's rooftops. We tour their first projects, on a boat and a school

Zimbabwe's prime minister on putting aside party politics, sharing power with Mugabe and relations with Britain and the world

Richard Branson on climate change The British entrepreneur on the carbon war room, how to battle climate change and the clean-energy revolution ahead

Photographs of America's military response to 9/11 during the past decade, following the war on terror as it has moved between Afghanistan, Iraq ...

Israel's settlement building Israel's settlements, many of which are regarded as illegal, are a central part of its conflict with the Palestinians

On many measures, the emerging economies now have more heft and reach than the developed ones

Joseph Stiglitz on American banks The violations have been massive The Nobel prize-winning economist says banks are undermining the rule of law in ...