Research in Progress (RIP) https://rip.trb.org/ en-us Copyright © 2026. National Academy of Sciences. All rights reserved. http://blogs.law.harvard.edu/tech/rss tris-trb@nas.edu (Bill McLeod) tris-trb@nas.edu (Bill McLeod) Research in Progress (RIP) https://rip.trb.org/Images/PageHeader-wTitle-RIP.jpg https://rip.trb.org/ Reducing Transportation Fire Risk Through Carbon Dot Addition for Diesel Fuels https://rip.trb.org/View/2706036 Sat, 23 May 2026 18:02:38 GMT https://rip.trb.org/View/2706036 Potential Use of Renewable Diesel for Transportation in Texas and its Environmental Impacts under Uncertainties Caused by COVID-19 https://rip.trb.org/View/1904909 Thu, 20 Jan 2022 13:45:28 GMT https://rip.trb.org/View/1904909 Hydrogen Injection in Diesel Fuel Project https://rip.trb.org/View/1315721 Fri, 11 Jul 2014 01:01:08 GMT https://rip.trb.org/View/1315721 Environmental Policy and Environmental Protection: A Longitudinal Analysis of the Impact of Governmental Policies on CO2 Emissions in OECD Countries, 1990-2003 https://rip.trb.org/View/1236688 Thu, 03 Jan 2013 15:51:17 GMT https://rip.trb.org/View/1236688