One of Newsround's main interests is the climate, and there have been several mentions of the Summit currently taking place in Copenhagen. Yesterday viewers were told about Robert's speed bump invention which "could help save the planet." The report ended: "So, Deborah's impressed. Fingers crossed for Robert it will impress experts at the climate change summit too."

Robert's invention, one of four chosen at a climate camp in Sonderborg earlier this year, might impress the politicians, but I'm not personally convinced that speed bumps are a good way to conserve energy.