Photosynthesis is ubiquitous, but not easy – for humans. Although plants do it, humans find it more of a challenge: but we are making progress on a number of fronts. The potential long term is almost limitless supplies of low carbon energy; clean fuels for cars, planes and ships; and fundamental change to the nature of the global economy.
Food waste is a major and growing problem; it is also moving rapidly up policy, corporate and consumer agendas. Reducing food waste is a win: win solution several times over: saving the planet, people, resources and money. It may need something of a food waste revolution but the current combination of pressures, new technologies and new solutions may be enough to achieve it.