HealthThis year could come to be regarded as a turning point in history This momentous year could mark one of those rare moments when the old world order is swept away and something new, and hopefully better, emerges, says Graham Lawton Comment
EnvironmentThe population debate: Are there too many people on the planet? The world population is 7.7 billion. What do our growing numbers mean for economic security, climate change, environmental destruction and the likelihood of pandemics? Features