Twenty nine percent of all carbon emissions come from the transportation sector. And, some estimates are higher. In 2018, twelve states (and the District of Columbia) in the Northeast responded, creating the Transportation and Climate Initiative to improve transportation, develop the clean energy economy and reduce carbon emissions from the transportation sector. This initiative is being facilitated by the Georgetown Climate Center.



Vehicle Electrification Group

The Vehicle Electrification Group at Carnegie Mellon University was founded by Professor Jeremy Michalek and Professor Jay Whitacre in 2009 to study systems-level issues of hybrid and plug-in vehicles. Research areas include:

Vehicle-to-grid (V2g): Everything You Need To Know

V2G stands for “vehicle to grid” and is a technology that enables energy to be pushed back to the power grid from the battery of an electric car. With electric vehicle-to-grid technology—also known as car-to-grid—a…

Electric Vehicle Investments Provide Benefits Across the U.S.

This map compiles ZETA research to illustrate EV investments across the country. These private investments are creating tens of thousands of good-paying auto jobs that will reinvigorate communities, generating thousands of additional indirect jobs. And…

Sources of Greenhouse Gas Emissions

Greenhouse gases trap heat and make the planet warmer. Human activities are responsible for almost all of the increase in greenhouse gases in the atmosphere over the last 150 years.1 The largest source of greenhouse…

What Is the Carbon Footprint of Transportation?

The statistician and engineer W. Edwards Deming once said “In God we trust. All others must bring data.” Some of the best data come from the Our World in Data team at Oxford University. Their…

Profitably Decarbonizing Heavy Transport and Industrial Heat

To avoid the worst risks of runaway climate change, the world must cut global greenhouse gas emissions— chiefly carbon dioxide from burning fossil fuels—in half by 2030 and to about zero by 2050. Of that…

A Low Carbon Fuel Standard: In Brief

As part of the congressional deliberations on addressing climate change, Congress may consider policy options for reducing greenhouse gas(GHG)emissions from the transportation sector. One of the leading contributors to the U.S. GHG emission profile in…

Climate Action Pathway

By 2050, passenger and freight transport will be completely decarbonized by shifting to a more sustainable, diverse and resilient range of modes and vehicle technologies. Although individual countries will need to identify their own pathway…

PRESIDENTIAL ACTIONS: Biden Administration Advances Expansion & Modernization of the Electric Grid

Departments of Energy and Transportation Announce New Actions to Upgrade America’s Power Infrastructure — Creating Jobs, Increasing Reliability, and Combating Climate Change

Our Transportation Future

The Transportation and Climate Initiative is a collaboration of Northeast and Mid-Atlantic states and the District of Columbia. In December 2018, nine TCI states and D.C. committed to design and create a market-based program over…

Building Resilient Transportation

State and regional transportation agencies across the country are facing extreme weather events that damage roads and bridges and cost large sums to repair, not to mention the cost to the economy from disrupted travel.

The Most Detailed Map of Auto Emissions in America

Transportation is the largest source of planet-warming greenhouse gases in the United States today and the bulk of those emissions come from driving in our cities and suburbs.

Solar carports: how do they work and how much do they cost?

While a typical carport or patio cover provides shading and is undoubtedly a value-add for a home or automobile owner, its one-dimensional simplicity is a missed opportunity. If you’re a PV fanatic following emerging technologies in the solar industry,…

Fuel Economy in Hot Weather

Hot weather can actually increase your fuel economy. Your engine warms up to an efficient temperature faster; summer grades of gasoline can have slightly more energy; and warm air causes less aerodynamic drag than cold…

Fueling a Clean Transportation Future

Smart Fuel Choices for a Warming World.

MacRebur: The Plastic Road Company

MacRebur’s mission is to help solve the waste plastic epidemic and the poor quality of roads we drive on around the world today. Our innovative solution involves processing waste plastics destined for landfill or incineration…

IMO 2020: The Big Shipping Shake-Up

Over 90% of all global trade takes place on our oceans. Unfortunately, the network of 59,000 vessels powering international commerce runs on sulfur-laden bunker fuel, and resulting emissions are causing problems on dry land.

The Transportation and Climate Initiative (TCI)

The Transportation and Climate Initiative (TCI) is a regional collaboration of 12 Northeast and Mid-Atlantic states and the District of Columbia that seeks to improve transportation, develop the clean energy economy and reduce carbon emissions from…

Carbon Pollution from Transportation

Burning fossil fuels like gasoline and diesel releases carbon dioxide, a greenhouse gas, into the atmosphere. The buildup of carbon dioxide (CO2) and other greenhouse gases like methane (CH4), nitrous oxide (N2O), and hydrofluorocarbons (HFCs) is…

Climate Collaborative – Transportation Resources

This page highlights case studies, videos, tools, and other resources from our partners. Adopting efficiencies in shipping cargo, logistics optimization, and intermodal transport can significantly reduce greenhouse gas emissions from the global movement of goods…

A brief introduction to climate change and transportation

How to reconcile people's love affair with their vehicles and society's need to reduce carbon emissions?

The Partnership on Sustainable, Low Carbon Transport (SLoCaT)

The Partnership on Sustainable, Low Carbon Transport (SLoCaT) promotes the integration of sustainable transport in global policies on sustainable development and climate change and leveraging action in support of the implementation of the global policies.…


Is sustainable mining possible? The EV revolution depends on it.

By Evan Halper  Photo: Dan Kraker, AP   08/11/22  
Electric cars are still rare in this marshy stretch of central Minnesota, where it is more common to pass a flock of wild turkeys on the country roads than a Nissan Leaf. But the region…

Fossil Fuel Subsidies & Electrification of Transport

We need to halve emissions by 2030 to have a chance of hitting net zero by 2050, and fossil-fuel subsidies are one of the biggest financial barriers hampering the world’s shift to renewable energy sources.…

Electrifying transportation reduces emissions AND saves massive amounts of energy

By Karin Kirk   08/07/22  
With high energy prices and increasing urgency to reduce fossil fuel burning, it makes sense to get the most out of every gallon of gasoline or kilowatt-hour of electricity. A previous post showed that charging…

EV manufacturers, regulators debate US ability to hit 50% sales goal by 2030

By Dan Zukowski  Photo: Nic Antaya, Getty Images   08/03/22  
Panelists from the U.S. Department of Energy, General Motors, Panasonic and the International Council on Clean Transportation debated the United States’ ability to reach the Biden administration’s goal that half of all new vehicle sales…

Congress Is Giving Billions to the Chip Industry. Strings Are Attached.

By Ana Swanson  Photo: Philip Cheung, The New York Times   08/03/22  
Amid a global semiconductor shortage, and as lawmakers dithered over a bill to boost U.S.-based chip manufacturing, Intel went to the Biden administration with a proposal that some officials found deeply alarming. Intel told Commerce…

Road mobility

By Timo Moller and Others   08/01/22  
Tailpipe emissions from cars, trucks, and other road vehicles account for around 75 percent of all carbon emissions from mobility—approximately six gigatons of CO₂ per year. This makes up close to 15 percent of total…

Climate Bill ‘Transformative’ for Auto and Energy Industries

By Jack Ewing and Others  Photo: Ruth Fremson, The New York Times   07/29/22  
The $369 billion climate and tax package Democrats in the Senate proposed this week could have far-reaching effects on the kinds of cars that Americans drive, where those cars are made and how the country…

Inflation Reduction Act Falls Short in Prioritizing Bikes

By Noa Banayan   07/28/22  
Introduced on July 27, the climate- and energy-focused Inflation Reduction Act of 2022 misses a massive opportunity by neglecting to invest in an electric bicycle tax credit and other critical initiatives to promote biking for…

Energy Department will lend G.M. and LG $2.5 billion to build battery factories.

By Jack Ewing  Photo: Peter Hoffman, The New York Times   07/25/22  
The U.S. Energy Department said Monday that it would lend $2.5 billion to a battery maker owned by General Motors and LG Energy Solution to build battery factories, advancing the Biden administration’s plan to promote…

In Hawaii, youth are suing over climate inaction

By Julia Kane   06/02/22  
As Tropical Storm Olivia bore down on the island of Maui in September 2018, Kaliko and her family grabbed their most important belongings and fled. The storm inundated the island with more than a foot…

Booster is making renewable fuels accessible in ways a gas station cannot

By Lora Kolodny   05/25/22  
Fuel delivery start-up Booster made its name filling up commuters’ cars while they were parked at the office. But after the Covid pandemic shifted so many to remote work, Booster CEO Frank Mycroft says, the…

17 states push EPA to revoke California’s ability to set its own vehicle emission standards

By Nathan Solis  Photo: David Butow , The Los Angeles Times   05/13/22  
The attorneys general of 17 states have asked a federal appeals court to reconsider an Environmental Protection Agency decision allowing California to set its own vehicle emission standards.

Creaky U.S. power grid threatens progress on renewables, EVs

By Tim McLaughlin  Photo: REUTERS/Carlos Barria   05/12/22  
After decades of struggle, the U.S. clean-energy business is booming, with soaring electric-car sales and fast growth in wind and solar power. That’s raising hopes for the fight against climate change.

Group plans microgrid-based hydrogen highway in California

By Lisa Cohn   04/22/22  
For example, Gov. Kathy Hochul wants New York to become a green hydrogen hub and wants fuel cell microgrids — which use green hydrogen — to help it achieve this goal.

Here’s How Slowly New York City Is Moving on Electric Vehicles

By Winnie Hu , Nadav Gavrielov and Others  Photo: Gabby Jones , The New York Times   04/06/22  
There are just 15 electric public buses on the streets of New York, out of a fleet of more than 5,900 buses. There is just a single electric police patrol car, a Tesla, and only…

NHTSA Announces New Fuel Economy Standards

The US Department of Transportation’s National Highway Traffic Safety Administration has announced new fuel economy standards for fleets. The new standards will ensure that OEMs improve vehicle miles-per-gallon, making them more efficient and reducing transportation…

Technology can fix the climate mess—but not without help

By Matt Simon  Photo: Richard Newstead/getty Images   04/04/22  
Another damning IPCC report insists that to reduce emissions, humanity will need more political willpower and help from nature's carbon-sequestering powers.

Biden Invokes Cold War Statute to Boost Critical Mineral Supply

By Ana Swanson  Photo: Steve Marcus , Reuters   03/31/22  
President Biden took steps on Thursday to try to increase domestic production of critical minerals and metals needed for advanced technologies like electric vehicles, in an attempt to reduce America’s reliance on foreign suppliers.

Switching To Electric Vehicles Could Save More Than 100,000 Lives, Study Finds

By Jamie Hailstone  Photo: Smith Collection , Getty Images   03/30/22  
Moving to zero-emission vehicles and energy could help prevent up to 110,000 deaths in the United States, according to a new report.

US transition to electric vehicles would save over 100,000 lives by 2050 – study

By Nina Lakhani  Photo: Justin Sullivan   03/30/22  
A speedy nationwide transition to electric vehicles powered by renewable energy would save more than 100,000 American lives and $1.2tn in public health costs over the next three decades, according to a new report.

Governments Should Subsidize E-Bikes, Not Gasoline Prices

By Lloyd Alter  Photo: Gazelle , Urban Arrow   03/14/22  
In California, Governor Gavin Newsom is proposing a tax rebate to help offset the increases in the price of gas. It's not quite figured out yet, but his economic adviser DeDe Myers says in a…

How an Electric Truck Factory Became a Lightning Rod in Georgia

By David Gelles  Photo: Matthew Odom   03/14/22  
It is billed as the largest economic development project in the history of Georgia, an electric vehicle factory that could grow to be five times as large as the Pentagon and produce as many as…

PG&E and Ford Collaborate on Bidirectional Electric Vehicle Charging Technology in Customers’ Homes

Today, Pacific Gas and Electric Company (PG&E) and Ford Motor Company announced a collaboration exploring how Ford’s new F-150 Lightning electric vehicle (EV)—the first commercially available light-duty truck with bidirectional charging technology—can interact with the…

EPA restores California’s ability to set stricter clean car standards

By Rachel Frazin  Photo: Greg Nash   03/09/22  
The Environmental Protection Agency (EPA) said Wednesday it would reinstate California's authority to set its own clean car standards after the state's authority was revoked by the Trump administration.

U.S. Postal Service moves ahead with plan to spend billions on gas vehicles

By Emma Newburger  Photo: Angus Mordant | Bloomberg | Getty Images   02/23/22  
The U.S. Postal Service on Wednesday completed a final regulatory requirement for its plan to replace its delivery fleet with thousands of gas-powered vehicles, forging ahead with a decision that’s drawn strong opposition from the…

Corn-Based Ethanol May Be Worse For the Climate Than Gasoline, a New Study Finds

By Georgina Gustin  Photo: Kathryn Gamble , Getty Images   02/16/22  
Ethanol made from corn grown across millions of acres of American farmland has become the country’s premier renewable fuel, touted as a low-carbon alternative to traditional gasoline and a key component of the country’s efforts…

Here’s what Super Bowl ads say about climate change

By Kyla Mandel  Chart: Elijah Wolfson and Kyla Mandel   02/14/22  
Toyota debuted its hybrid Prius for the first time at the Super Bowl in 2005, calling it “good news for planet Earth.” In 2006, there were two Super Bowl ads for new hybrids: one for…

White House rolls out $5 billion funding plan to states for electric vehicle chargers

By Ground News   02/10/22  
The Biden administration on Thursday announced the availability of $5 billion in federal money to states over five years. Each station would need to have at least four fast-charger ports, which enable drivers to fully…

How Billions in Infrastructure Funding Could Worsen Global Warming

By Brad Plumer  Photo: David Zalubowski , Associated Press   02/10/22  
The highways in Colorado, one of the nation’s fastest-growing states, are frequently clogged with suburban workers driving into Denver, skiers heading high into the Rocky Mountains and trucks rumbling across the Interstates.

Washington’s Decisive Decade An Emerging Roadmap for Transportation Decarbonization & Cleaner Air

With the transportation sector accounting for 45% of the state’s emissions, it will receive the majority of upcoming investments from the Climate Commitment Act (CCA). We are firmly in the Decisive Decade for transportation decarbonization…

Do we need roads that charge cars? Detroit thinks so

By Julian Spector   02/02/22  
Electric car drivers in Detroit can soon boost their batteries just by driving down the right road. On Wednesday, Michigan state agencies awarded $1.9 million to Israeli startup Electreon to build a mile-long wireless charging strip.…

More electric vehicles mean more utility microgrids

By Lisa Cohn  Photo: Scharfsinn   01/28/22  
Policy, economic and environmental issues are expected to dramatically boost demand for electric vehicles (EVs), a phenomenon that is spurring more utility microgrids. In fact, three utilities — Pacific Gas & Electric (PG&E), Portland General…

5G Connectivity: A Key Enabling Technology To Meet America’s Climate Change Goals

The impact of climate change is being felt locally and globally. Rising to the challenge, the United States is now taking on ambitious emission reduction targets. It recently rejoined the Paris Agreement in 2021 and…

Commerce Dept. Survey Uncovers ‘Alarming’ Chip Shortages

By Ana Swanson and Others  Photo: Agence France-Presse   01/25/22  
The United States is facing an “alarming” shortage of semiconductors, a government survey of more than 150 companies that make and buy chips found; the situation is threatening American factory production and helping to fuel…

Electric Vehicles Charge Ahead in Statehouses

By Alex Brown  Photo: Frederic J. Brown AFP via Getty Images   01/24/22  
Automakers are planning to put nearly 1 million new electric vehicles on American roads in 2022. Lawmakers are trying to make sure their states are ready. “We will see a lot more emphasis on electric…

One way to clean up dirty trucks and ships? Design smarter routes

By Maria Gallucci  Photo: Joe Raedle via Getty Images   01/18/22  
The trucks, vans and cargo ships that haul our goods still predominantly use dirty diesel fuels to get to warehouses and crowded ports. New mapping tools are helping freight companies to start planning for a…

A neglected California city reinvents itself with electric cars — and plots a road map for the nation

By Evan Halper  Photo: Myung J. Chun   01/10/22  
This Central Valley outpost is one of the most fertile places on Earth, attracting thousands of seasonal laborers to harvest lettuce and reaping windfalls for big agribusiness. But for most of Rey León’s life, the…

Electric, autonomous delivery vehicle boom expected on city streets

By Dan Zukowski  Photo: General Motors/BrightDrop   01/07/22  
With Amazon, FedEx and Walmart among those placing major orders for electric delivery vehicles, thousands will appear on the road in coming years, executives announced at CES.

Biden Orders Federal Vehicles and Buildings to Use Renewable Energy by 2050

By Lisa Friedman  Photo: Doug Mills , The New York Times   12/30/21  
President Biden on Wednesday set in motion a plan to make the federal government carbon neutral, ordering federal agencies to buy electric vehicles, to power facilities with wind, solar and nuclear energy, and to use…

Electric vehicles are gaining traction among Wisconsin drivers and businesses that provide support

By Rick Barrett   12/29/21  
From cars to motorcycles, and fire trucks to charging stations, Wisconsin has a key role in the development of electric vehicles.

Pricing indirect emissions accelerates low—carbon transition of US light vehicle sector

By Paul Wolfram and others   12/08/21  
Large–scale electric vehicle adoption can greatly reduce emissions from vehicle tailpipes. However, analysts have cautioned that it can come with increased indirect emissions from electricity and battery production that are not commonly regulated by transport…

Electric School Bus Virtual Roundtable

By Caroline Hahn   11/30/21  
Recently NYLCV and the NYC Clean School Bus Coalition held a virtual roundtable discussion in conjunction with NYCSBUS to speak about the importance of school bus electrification in New York City, especially within environmental justice…

Zero-Emission Corporate Fleets May Be Closer Than You Think

By Phil Covington   11/30/21  
The transportation sector is the single largest contributor to greenhouse gas (GHG) emissions in the United States, according to the EPA, having dislodged electricity generation from the top spot in 2017.

Everything in the $1.2 trillion infrastructure bill

By Jonathan Ponciano  Photo: AFP via Getty Images   11/15/21  
President Joe Biden on Monday signed into law one of the largest infrastructure packages in U.S. history after months of bipartisan negotiations and tense political infighting, shoring up $1.2 trillion in funds, including $550 billion…

20,000 deaths and counting: As mass transit stagnates, US traffic deaths surge

By Adam Mahoney  Photo: Irfan Khan / Los Angeles Times   11/04/21  
Winter storm Uri notoriously demonstrated the failure of many elements of American infrastructure: Texas’ electrical grid collapsed, water treatment systems went offline, and oil refineries released millions of pounds of excess pollution. Less widely noticed, however, was the…

Old Power Gear Is Slowing Use of Clean Energy and Electric Cars

By Ivan Penn  Photo: Jim Wilson/The New York Times   10/28/21  
Seven months after workers finished installing solar panels atop the Garcia family home near Stanford University, the system is little more than a roof ornament. The problem: The local utility’s equipment is so overloaded that…

What If Google Flights Displayed Train and Bus Journey Alternatives Too?

By Sami Grover  Photo: Rob Kints / Getty Images   10/13/21  
The other day, I welcomed the news that Google Flights would start displaying flight-specific carbon emissions next to every itinerary in its search results. After all, research has shown huge disparities in emissions based on…

Are Tesla and Texas a Perfect Match? It’s Questionable.

By Niraj Chokshi, Clifford Krauss and Ivan Penn  Photo: Matthew Busch for The New York Times   10/13/21  
Tesla’s move from Silicon Valley to Texas makes sense in many ways: The company’s chief executive, Elon Musk, and the conservative lawmakers who run the state share a libertarian philosophy, favoring few regulations and low…

Tesla Will Move Its Headquarters to Austin, Texas, in Blow to California

By Niraj Chokshi  Photo: Justin Kaneps   10/07/21  
Tesla will move its headquarters from California to Austin, Texas, where it is building a new factory, its chief executive, Elon Musk, said at the company’s annual shareholder meeting on Thursday. The move makes good…

Self-driving electric skateboards hint at future mobility

By Joann Muller  Photo: Citroen   10/05/21  
Nobody really knows what the future of urban transportation looks like, but chances are it will involve an electric skateboard. Why it matters: Automakers like Citroën are imagining a future based on the same basic…