A hot sweaty night in Pakistan led to James Trevelyan inventing a machine to keep people comfortably cool without contributing to global warming. What’s your story? I’m an engineer. There’s nothing that excites me more than the possibility of making life better for hundreds of millions. In the wee small …

Having come up with an air conditioner which is both energy efficient and effective, James Trevelyan is now following another passion and searching for clean water solutions. What’s your story? I invented an extremely energy-efficient personal air conditioner that provides affordable air conditioning for everyone on the planet, without heating …