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EPA and California ARB charge Volkswagen with using software defeat device to circumvent NOx testing in 4-cylinder 2.0L diesels

Green Car Congress

As described in the NOV, software installed in the electronic control module (ECM) on the affected vehicles detects when the car is undergoing official emissions testing. The alleged violations do not present a safety hazard; the cars remain legal to drive and resell. EPA call this software “the switch”. —EPA NOV.

EPA 150
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Chilled Ammonia Pilot Project Captures 90% of CO2

Green Car Congress

The gas is first cooled to condense and remove moisture and residual pollutants before it enters the CO 2 absorber. The entire extracted gas volume then is reintroduced into the FGD outlet transition duct where it is mixed with the FGD exhaust gas. The three-step carbon capture process at Pleasant Prairie.

EPRI 223