Sir Richard Branson, founder of Virgin Group, is bringing business leaders together to build a better world.
The former president of Costa Rica has gained a unique insight into accounting for natural capital.
Although synonymous with military use, drones are increasingly being used for conservation and environmental protection.
Journalist and political commentator David Frum says a price on carbon could get Republican support, if done properly.
The private foundation of paypal co-founder Peter Thiel funds radical ideas with huge potential for positive change.