Guardian | Oil chief: my fears for planet: "The head of one of the world's biggest oil companies has admitted that the threat of climate change makes him 'really very worried for the planet'.
In an interview in today's Guardian Life section, Ron Oxburgh, chairman of Shell, says we urgently need to capture emissions of the greenhouse gas carbon dioxide, which scientists think contribute to global warming, and store them underground - a technique called carbon sequestration. "
