McDonald's is the secondlargest fast-food restaurant chain in the world, available in 119 countries with approximately 36,900 restaurants and nearly 68 million customers visiting every day. Innovation has played a huge part in its success.
A plane powered entirely by the sun is to embark on a 35,000km journey around the world in 2015. If successful, it will see the established boundaries of solar power stretched to an unprecedented level, potentially inspiring cleantech innovation across the globe.