emissions - new research, April 15 * Empty shops revival plan to prevent high street decline, April 14 topic * Litter on our beaches has increased by 110% since 1994, according to the Marine Conservation Society, April 8 topic * Green groups launch legal battle against Heathrow expansion, April 7 topic News UK 2009 - Dec - Nov - Oct - Sep - Aug - Jul - Jun - May - Apr - Mar - Feb - Jan 2012 - 2011 - 2010 - 2009 - 2008 - 2007 - 2006 - 2005