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Catalytic converters have proven to be reliable and effective in reducing noxious tailpipe emissions. However, they also have some shortcomings in use, and also adverse environmental effects in production: An engine equipped with a three-way catalyst must run at the stoichiometric point, which means more fuel is consumed than in a lean-burn engine.
As the study notes, “Comparing real-world tailpipe particulate mass emissions to tire wear emissions, both in ‘normal’ driving, the latter is actually around 1,850 times greater than the ...
The first legislated exhaust (tailpipe) emission standards were promulgated by the State of California for 1966 model year for cars sold in that state, followed by the United States as a whole in model year 1968. Also in 1966, the first emission test cycle was enacted in the State of California measuring tailpipe emissions in PPM (parts per ...
The mechanism by which exhaust emissions are controlled depends on the method of injection and the point at which air enters the exhaust system, and has varied during the course of the development of the technology. The first systems injected air very close to the engine, either in the cylinder head's exhaust ports or in the exhaust manifold.
The President must set tough rules that restore, and later strengthen, tailpipe emissions standards that President Donald Trump trashed while putting us on course to phase in a new car fleet that ...
The Environmental Protection Agency in April 2023 proposed requiring a 56% reduction in new vehicle emissions by 2032. US to soften tailpipe rules, slow EV transition through 2030 Skip to main content
An in-game screenshot from Fate of the World, a global warming game. A climate change video game, also known as a global warming game, is a type of serious game.. As a serious game, it attempts to simulate and explore real life issues to educate players through an interactive experience.
The Biden administration this week is expected to announce new automobile emissions standards that relax proposed tailpipe limits for three years but eventually reach the same strict standards set ...