Diesel engines and burning of biomass are responsible for the lion's share of black carbon emissions in the United States, according to an EPA report to Congress on emissions of the carbon particulates. EPA's report on black carbon-- the most effective form of particulate matter, by mass, at absorbing solar energy--holds some interesting facts in regard to the largest U.S. sources.
Bayerische Motoren Werke AG, the world’s largest maker of luxury vehicles, will supply Toyota Motor Corp. with diesel engines as part of a cooperation agreement that will initially focus on developing car batteries.
Cummins Inc., the maker of diesel truck engines and generators, reported first-quarter profit that topped analysts’ estimates and raised its 2010 sales forecast as demand increased in Asia and Latin America. The shares climbed.