”How far can solar energy go?”

David Attenborough in Paris at the Global Climate Summit: ”If we could catch one five-thousandth part of the energy that the Sun sprays onto the Moon, onto this globe every day, we would supply all the energy requirements of humanity.

So how inefficient are we that we can’t get that much?”

Attenborough is one of the public faces at the global climate summit of an initiative dubbed the Global Apollo Programme, which seeks to make renewable energy cheaper than coal within 10 years.