Sustainable transport
Moving people - by train, bus, car, boat or aeroplane - needs to become more efficient and produce fewer emissions. How can it be done?
Food and climate change
Changing weather patterns and higher temperatures threaten food production around the world, particularly in the poorest countries that have fewest resources to adapt. But a range of innovations could help, including changes in farming practices, use of more resilient crops, water harvesting and early warning systems.