Scientists unveil 'world's first practical artificial leaf'

Scientists unveil 'world's first practical artificial leaf': "Leaves – the kind that grow on trees – create energy from sunlight and water through the process of photosynthesis. For over a decade, scientists have been kicking around the idea of creating an 'artificial leaf.' Such a device would use sunlight to split water into hydrogen and oxygen, which could then be stored in a fuel cell and used to create electricity."