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Energy/Greenhouse Gas Emissions

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The Energy and Greenhouse Gas (GHG) Emissions topic describes a range of programs, policies, case studies and other resources related to energy consumption and mitigation of greenhouse gas emissions from the transportation sector. For surface transportation, GHG mitigation strategies include efficient vehicles; low-carbon fuels; VMT reductions; operational efficiency of the system and vehicles; and construction, maintenance, and agency operations.

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Recent Developments

• U.S. EPA Relaunches Climate Change Website
• Research Updates Role of Transit to Reduce GHG Emissions
• DOE Offers Strategy for Transportation Decarbonization
• White House Restores Measure on Social Cost of Greenhouse Gases
• AASHTO Publishes First Report in Series on U.S. Commuting Trends
• Federal Grant Solicitation Prioritizes Climate, Environmental Justice
• Group Launches Effort to Electrify U.S. School Bus Fleet
• Research Finds Mobile Sensors Effective to Track C02 Emissions
• Study Charts Path to Net-Zero Carbon Emissions by 2050
• President Biden Signs Order on Climate Change, Environmental Justice

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Key Resources

• AASHTO Resilient and Sustainable Transportation Systems Program
• 2014 Air Quality Peer Exchange
• Air Quality Community of Practice
• EPA Transportation and Climate Website
• EPA and National Highway Traffic Safety Administration Vehicle Fuel Efficiency and GHG Regulations and Standards
• FHWA Energy and Emissions Web Page
• NCHRP Report 750: Strategic Issues Facing Transportation: Volume 5: Preparing State Transportation Agencies for an Uncertain Energy Future (5-27-14)
• Second Strategic Highway Research Program (SHRP2) Practitioners Guide to Incorporating Greenhouse Gas Emissions into the Collaborative Decision-Making Process (2013)
• NCHRP 25-25 Task 58, Methods to Address Greenhouse Gas Emissions from Transportation Construction/Maintenance/Operations Activities, Final Report and the Greenhouse Gas Calculator for State Departments of Transportation
• Strategies For Reducing The Impacts of Surface Transportation On Global Climate Change: A Synthesis Of Policy Research And State And Local Mitigation Strategies (NCHRP 20-24(59) 2009)
• Council on Environmental Quality Guidance on Consideration of Greenhouse Gases

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