Guardian: The world’s first satellite designed to map concentrations of carbon dioxide in the Earth’s atmosphere will be launched by Nasa on Monday. The Orbiting Carbon Observatory (Oco) will collect precise measurements of the greenhouse gas in the Earth’s atmosphere, identifying where it is coming from, where it is absorbed and what happens to it in between. This improved tracking of CO2 will help scientists develop maps how the gas is concentrated around the world and give a better picture …