Perfluorinated surfactants contaminate German waters | What lurks in cooling towers? | News Briefs: Vehicle life-cycle analysis `Farms and forests could store greenhouse gases ` Wetlands mask methane ` Nanotechnology’s risks ` Plastic pipes could contaminate water ` Recycling cars checks mercury pollution | Composting industrial waste | Barbiturates’ environmental legacy | Emerging DBPs in drinking water | PBDEs in Great Lakes fish | A European union of analytical labs