One of the most consistent, unavoidable barriers to recycling is the cost. Layers of infrastructure – from collection to sorting to recycling – need to be navigated, and constant shipping costs emerge every step of the way. Shipping recyclables can be particularly prohibitive, and it all-too-often requires the use of diesel-fuel trucks that, apart from being terrible for the environment, historically cost more to fuel than gasoline. Until battery-powered freighters and trucks become accessible alternatives to gas guzzlers, are there any alternative fuels that might mitigate some of the environmental and economic costs of shipping?