Scientist and inventor James Lovelock, 94, poses with one of his early inventions, a homemade Gas Chromatography device, used for measuring gas and molecules present in the atmosphere, during a photocall for the Unlocking Lovelock: Scientist, Inventor, Maverick exhibition at the Science Museum, south west London. The British environmental scientist whose influential Gaia theory sees the Earth as a living organism gravely imperiled by human activity has died on his 103rd birthday, it was announced Wednesday, July 27, 2022. (Nicholas Ansell/PA via AP, file)