HARDtalk - Lord Rees, Astronomer Royal and President of the Royal Society

Interviews with newsmakers and personalities from across the globe. Stephen Sackur talks to Lord Rees, Astronomer Royal and president of the Royal Society. In 2010 the Royal Society celebrates 350 years of scientific inquiry. In that time, the public's horizons have expanded immeasurably and knowledge has advanced hugely, but can science solve the most pressing challenges of this century? Does science have the power to change people's lives and bring global solutions to problems like climate change, energy and food security, biodiversity, poverty and population growth?