In environmental news, emissions from old diesel engines are killing an estimated 20,000 Americans a year. This according to a new report by the Clean Air Task Force. The environmental group criticized new governmental regulations on making diesel engines cleaner because they don’t affect millions of older trucks, buses and construction engines. The metropolitan areas of New York, Los Angeles and Chicago are most affected. Diesel pollution is blamed for contributing to asthma, respiratory diseases and heart attacks. The diesel industry criticized the report claiming it was based on old data.