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Under an initiative announced at a United Nations climate gathering in November, preliminary plans are in the works for a “Great Lakes-St. Lawrence Seaway System Green Shipping Corridor Network.”

Unprecedented diesel prices mean that demand destruction for the fuel is probable, the International Energy Agency said.

California is deploying a portable emissions detector in areas with heavy truck traffic to educate drivers and operators about a new smog check program that starts Jan. 1.

The national average price of diesel dipped 2 cents to $5.313 a gallon, according to Energy Information Administration data released Nov. 14.

J.B. Hunt Transport Services Inc. set a new goal to reduce its carbon emission intensity 32% by 2034, the company announced Nov. 14.

All original equipment manufacturers approve the use of a B5 biodiesel blend, while the B20 blend is most common.

Georgia Gov. Brian Kemp signed two executive orders Nov. 4 to extend the supply chain emergency status and temporarily suspend state diesel and gas taxes through Dec. 11.

Gov. Roy Cooper signed an executive order positioning North Carolina to be a national leader in making and using zero-emission medium- and heavy-duty vehicles.

The Environmental Protection Agency said Nov. 9 it will consider adopting stricter rules on locomotive emissions in response to concerns raised by California regulators.

The California Air Resources Board has released a greenhouse gas emissions report showing a 33% drop in carbon pollution since 2001 that was achieved through a combination of tactics including expanded use of biodiesel and renewable diesel in heavy-duty trucks, greater use of electric vehicles and more fuel-efficient passenger vehicles.