Over the next half century society's need for energy will double, conventional supplies of energy will struggle to meet demand, and the stress on the climate from CO2 emissions will become more acute. The challenge for companies like Shell will be to develop new and innovative sources of energy, from hard-to-reach oil and gas, to 'unconventionals' like oil sands, to alternatives and renewables like biomass and wind. At the same time we need to lead in developing technologies and encouraging policies that limit CO2 emissions to manageable levels. And we have an important role to play in improving energy efficiency -- our own as well as our customers'. In short, for the next few decades our industry offers huge opportunities for scientists and engineers to tackle society's greatest challenges.
