Categories Rail Transportation Sustainability Is Rail Sustainable? The Co2Rail System is a truly carbon-neutral consumer of the energy inputs required to produce the carbon-negative outputs. However, a closer look into Rail Transportation itself would be prudent – despite how this Co2Rail System stands alone on its own merits. Eco-Friendly Rail If one anticipates utilizing a transportation network and its mobile infrastructure to combat anthropogenic increases in Carbon Dioxide, it stands to reason that one must first examine the ecological impact of that network and infrastructure itself as it relates to climate change. A clear-minded examination of the data shows that preserving the environment and combatting climate change is a responsibility Railroads take seriously. U.S. freight railroads, on average, move one ton of freight more than 470 miles per gallon of fuel. In 2019 alone, U.S. freight railroads consumed 656 million fewer gallons of fuel than they would have if their fuel efficiency had remained constant since 2000. Since greenhouse gas emissions are directly related to fuel consumption, freight railroads account for just 0.6% of total U.S. greenhouse gas emissions, according to EPA data, and just 2.1% of transportation-related greenhouse gas emissions. Surprisingly, a single freight Train can replace several hundred trucks, freeing up space on the highway for other motorists. On average, railroads are 3x – 5x more fuel-efficient than semi-trucks. That means moving freight by rail instead of truck lowers transportation-related greenhouse gas emissions by up to 75% – or up to nearly 100% using the technology described herein. Moreover, unlike other modes of transportation, when there are improvements to regulatory standards aimed at cutting rail equipment emissions, these standards usually apply to all applicable railroad equipment – both new and old. This differs substantially from other modes of transportation such as cars or trucks where new emissions standards usually only apply to newly manufactured vehicles.  (Association of American Railroads (AAR), 2021) (Association of American Railroads (AAR), 2021) Carbon-Neutral Rail While rail freight is by far the most carbon-friendly mode of surface transportation and there have been great advancements in both increasing the fuel efficiency and reducing emissions of rail transportation equipment, it is important to note that rail equipment – most notably Locomotives – do, obviously, contribute Carbon Dioxide to our atmosphere during their, albeit fuel-efficient operation. The technology described herein can change this, heretofore, unavoidable fact and make Rail Transportation not only the world’s first carbon-neutral mode of transportation but also the world’s first carbon-negative mode of transportation with the technology described herein. Put another way, a very efficient original mode of transportation is first attached to in a non-parasitic way, scrubbed of any – albeit efficient – carbon emissions, then utilized to create carbon-free input energy from Regenerative Braking and Solar Energy which is used to harvest anthropogenic Carbon Dioxide from ambient environmental air at the Gigaton-Scale.