Carbon footprint - a measure of the total greenhouse gas emissions caused directly and indirectly by a person, organization, event or product, is a consumer oriented concept that has received much discussion over the last several years. China is said to be the world's largest greenhouse-gas emitter, followed by the U.S.
The cosmic rays to which astronauts are exposed have always been a cause of worry since the radiation, particularly during prolonged space missions, can pose several health risks, including cancer. But knowing how space radiation induces tumor formation goes a long way toward designing strategies to protect space travelers against increased cancer risk, say researchers.
The 30-year-old has been one of the more dominant pitchers over the last few years. He won the MVP, CY Young and pitcher's triple-crown awards in 2011 with a 24-5 mark, a 2.40 ERA and 250 strikeouts. He won 17 games, with a 2.64 ERA and again led the league in strikeouts with 239.