GHG Inventory shows cement plant CO2 emissions’ positive trend

The latest Environmental Protection Agency Inventory of U.S. Greenhouse Gas Emissions and Sinks cites 2022 GHG loads of 5.489 billion metric tons of carbon dioxide equivalent, a 1.3 percent increase from the prior year. The GHG Inventory factors emissions of CO2, methane, nitrous oxide, hydrofluorocarbons, perfluorocarbons, sulfur hexafluoride and nitrogen trifluoride—all pegged for their global warming potential when released to…

Read More

Reduced Carbon Concrete Consortium assists states’ FHWA grant pursuits

The American Concrete Pavement Association, Iowa State University-hosted National Concrete Pavement Technology Center and allies have formed the Reduced Carbon Concrete Consortium (RC3) to assist state departments of transportation and other qualifying entities eyeing grants under the just-announced Federal Highway Administration Low-Carbon Transportation Materials (LCTM) program. RC3 will provide DOTs technical assistance and facilitate contractor preparedness with critical next steps…

Read More

EPA outlines 2029-2032 mixer, dump, day cab emissions standards

The U.S. Environmental Protection Agency claims avoidance of 1 billion tons of greenhouse gas emissions and $13 billion in net society benefits attributable to GHG Emissions Standards for Heavy-Duty Vehicles – Phase 3. If upheld after near-certain legal challenges, new thresholds in the final rule, measured against Phase 2 targets, will equate to CO2 emissions reduction levels of a) 8-40…

Read More

Groups challenge FHWA greenhouse gas emissions measure

In a letter to U.S. House and Senate members, 14 associations representing construction materials, products and downstream interests question the Federal Highway Administration’s authority to proceed with a greenhouse gas performance measure on projects the agency funds. Their argument traces the absence of a legal basis for a November 2023 FHWA rule, “National Performance Management Measures; Assessing Performance of the…

Read More

ASHRAE, ICC weigh feedback on building life cycle emissions draft

ASHRAE and the International Code Council invite comment to their jointly developed document, Proposed ASHRAE/ICC Standard 240P – Quantification of Life Cycle Greenhouse Gas Emissions of Buildings, through this month. The draft of the standard can be obtained and comments portal accessed at osr.ashrae.org. Standard 240P will provide a methodology to quantify the embodied and operational GHG emissions associated with…

Read More

EPA finalizes 2028 day cab, 2029 mixer, dump model emissions standards

Sources: U.S. Environmental Protection Agency; CP staff The U.S. Environmental Protection Agency claims avoidance of 1 billion tons of greenhouse gas emissions and $13 billion in net annual benefits to society attributable to GHG Emissions Standards for Heavy-Duty Vehicles – Phase 3, a final rule released just ahead of the Easter holiday weekend. If they clear near-certain legal challenges, the…

Read More

ASHRAE, ICC open building life cycle emissions draft standard to comment

Sources: ASHRAE, Atlanta; CP staff ASHRAE and the International Code Council invite comment to their jointly development document, Proposed ASHRAE/ICC Standard 240P – Quantification of Life Cycle Greenhouse Gas Emissions of Buildings, through March 18. The draft of the standard can be obtained and comments portal accessed here. Standard 240P will provide a methodology to quantify the embodied and operational GHG…

Read More

Materials, manufactured concrete groups challenge FHWA GHG yardstick

Sources: National Precast Concrete Association, Carmel, Ind.; CP staff In a letter to U.S. House and Senate members, 14 associations representing construction materials, products and downstream interests question the Federal Highway Administration’s authority to proceed with a greenhouse gas performance measure on projects the agency funds. Their argument traces the absence of a legal basis for a November 2023 FHWA…

Read More

Department of Energy supports Cat C13 hydrogen-hybrid R&D

With partial U.S. Department of Energy backing, Caterpillar Inc. has launched a three-year project to demonstrate an advanced hydrogen-hybrid power solution built on its new C13D engine platform. The company aims to prove how advanced control systems and electric-hybrid components can help hydrogen fueled engines meet or exceed traditional diesel engines’ power density and transient performance. Caterpillar will serve as…

Read More

California producers’ carbon volley

Two years of major gestures surrounding greenhouse gas emissions in cement and concrete production or procurement solidify California’s reputation for incubating policy. In October 2021, the California State Senate passed SB 596, charting a regulatory course for Golden State cement producers to attain net-zero carbon operations by 2045. The California Nevada Cement Association concurrently published an SB 596 action plan,…

Read More