International agreements such as the Kyoto Protocol have proved problematic, and individual governments have been reluctant to develop stringent national limits on emissions for fear of big companies relocating their factories and jobs to nations with laxer regulatory regimes.
Demsetz was the first to propose emissions trading as a way of giving polluters an economic incentive to reduce their emissions of pollutants.
Their purchase signalled the start of a move by Unitrans to a CNG fueled bus fleet, with the purpose of reducing exhaust emissions.
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Exhaust emissions from ships are considered to be a significant source of air pollution, with 18 to 30 percent of all nitrogen oxide and 9 percent of sulphur oxide pollution.
Following Carl's completion of these flights for the Navy, NACA technicians at the High-Speed Flight Research Station (HSFRS) near Mojave, California, outfitted the LR-8 engine's combustion chambers with nozzle extensions to prevent the exhaust gas from affecting the rudders at supersonic speeds.
Rye House has three single-shaft Siemens V94.2 gas turbines (generating 150MW each) rotating at 3000rpm and three Babcock Energy steam generators (receiving exhaust gas at 540C) connected to one 250MW steam turbine.