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Green Car Congress
Jan 31, 2015, 7:00 am156 ptsWhen the California Air Resources Board (ARB) initially established emissions criteria for replacement schoolbuses in 2008, the target for 2010 and newer model year school bus engines was 0.20 gram per brake horsepower-hour (g/bhp-hr) NOx and 0.01 g/bhp-hr particulate matter (PM) standards. However, due to the…
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Leaf through planet Earths environmental headlines in one convenient place. Read, share and discover the latest on ecology, science and green living from the web's most popular sites.