Renewable Natural Gas has moved from a niche waste-to-fuel pathway into a more defined part of U.S. transportation policy. The shift is not mainly a technology breakthrough. It is a policy and accounting change: federal tax credits, emissions-rate tables, and state fuel incentives are giving producers and fleet operators clearer signals about how RNG may be valued when it is used as transportation fuel.

The case for RNG in transportation is tied to two systems that cities and rural regions already manage: organic waste and heavy-duty fuel demand.… Read the rest

Recent evidence on ride-hailing emissions points to a central finding: the environmental impact of app-based mobility depends less on the app itself than on empty vehicle travel, vehicle technology, dispatch efficiency, and which trips are being replaced. Data from Toronto, California, Wuhan, and U.S. travel studies show different effects across places and methods, so broad claims about ride-hailing being either clean or inherently damaging are not well supported.

The clearest pattern is that ride-hailing adds environmental pressure when vehicles spend large shares of their distance without passengers or when rides replace transit, walking, or cycling.… Read the rest

Infrastructure Carbon Burden is becoming a practical planning issue because U.S. infrastructure emissions are not limited to tailpipes. They include daily transportation fuel use, energy demand shaped by land-use patterns, and embodied emissions from construction materials, site work, transport, and maintenance. For urban planners, the evidence points to a narrow but useful conclusion: location, network design, procurement, and repair priorities can change emissions outcomes, but only when claims are tied to measured data rather than broad sustainability language.… Read the rest

Remember when battery-powered vehicles were just a quirky side plot in the transportation story? Cue the montage music, because the e-bus has just stolen the show.

We’re not watching a few pilot programs anymore. This is a full-blown, continent-hopping revolution.

From Shenzhen’s silent, all-electric army to Amsterdam’s ambitious carbon-neutral goals, cities are rewriting their mobility scripts. The stats are impressive, but the real plot twist is in the strategy.

Look at India, making an audacious leap onto the highways.… Read the rest

Remember Blockbuster Video? That’s what the internal combustion engine is becoming right now. We’re living through the automotive industry’s streaming moment. The switch to electrons isn’t just a trend—it’s a full-blown cultural rewrite.

The fever chart is spiking. Global sales hit roughly 17 million units last year. That’s a 25% jump, meaning one in five new cars sold now plugs in.

China isn’t just playing this game; it’s writing the rulebook with about 11 million sales.… Read the rest

Public transit investment in smaller and midsize urban areas is drawing more attention because the emissions question is not limited to rail-heavy metropolitan regions. Many smaller cities have grown around private vehicles, wide arterial roads, separated land uses, and limited bus coverage. That does not mean transit automatically reduces emissions in every setting. It means the first marginal improvements can matter when they give residents a usable alternative to trips that would otherwise be made by car.… Read the rest

Transit funding benefits are not evenly distributed across every urban area. Recent research cited in the available evidence suggests that small and midsize cities may gain more new riders from each added federal transit dollar than the largest metropolitan systems, especially where funding is paired with service design that fits local travel patterns.

That finding matters for green transportation policy because many climate and mobility discussions concentrate on major rail and bus systems in large cities.… Read the rest

Transportation Decarbonization is often discussed through electric vehicles, renewable fuels, and mode shift. Intelligent Transportation Systems, or ITS, add a different lever: using data, sensors, communications, and control software to reduce wasted movement in the transport system that already exists. The evidence is promising in specific settings, especially adaptive signal control, but it is not a stand-alone route to net-zero transport.

From a green transportation perspective, ITS is best treated as an efficiency and coordination layer.… Read the rest

Remember when “going green” in shipping meant a potted fern in the dispatch office? Those days are over. Now, we have a real tech-driven revolution where saving the planet also saves money.

This isn’t just a cosmetic change. It’s a complete overhaul. Picture silent electric semis on the interstate, and robots in fulfillment centers working together thanks to smart algorithms.

The digital transformation is real. It makes sustainability a clear business goal, with exact carbon tracking.… Read the rest

EV Fire Research is becoming more relevant to electric vehicle safety standards because the evidence base is now larger, more detailed, and more focused on real operating conditions. Recent work has moved beyond a narrow question of whether batteries can fail in a laboratory. It now examines how failures begin, how fires develop, what responders face, and which test conditions may better reflect charging, aging, impact, and thermal propagation.

The data does not support simple claims that electric vehicles are uniquely unsafe.… Read the rest