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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.”

Federal regulators have proposed a new climate-reporting rule that would require large federal contractors to publicly disclose their greenhouse gas emissions, climate-related financial risks and science-based emissions reduction targets.

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

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

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

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

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.

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.

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