Professor Sir David King outlines his priorities for science in the 21st centuryIn his speech, Sir David explored some of the key issues the world faces and the role of science and scientists in seeking solutions and influencing government policy.He called for a 21st century Renaissance in our approach to consumerism and argued that we have been consuming too much too quickly, leaving the ecosystems on which we depend unable to replenish themselves. His speech explores a range of difficult issues facing the UK and the global community such as increasing population as the driver for a diverse range of challenges including terrorism, climate change, and strains on our food, water and energy supplies and the catastrophic impact of burning fossil fuels and deforestation if continued at current rates.