Uber, Lyft Get a Carpool Competitor in D.C. Uber, Lyft Get a Carpool Competitor in D.C.
Uber, Lyft Get a Carpool Competitor in D.C.
Uber, Lyft Get a Carpool Competitor in D.C.
TransitScreen Looks to Keep Up With Fast-Changing Transportation Landscape TransitScreen Looks to Keep Up With Fast-Changing Transportation Landscape
TransitScreen Looks to Keep Up With Fast-Changing Transportation Landscape
TransitScreen Looks to Keep Up With Fast-Changing Transportation Landscape
Hitchhiking Goes High Tech: The Story Behind CarmaHop’s Upcoming Launch Hitchhiking Goes High Tech: The Story Behind CarmaHop’s Upcoming Launch
Hitchhiking Goes High Tech: The Story Behind CarmaHop’s Upcoming Launch
Hitchhiking Goes High Tech: The Story Behind CarmaHop’s Upcoming Launch
Film Looks at Capital Bikeshare From Contemporary-Art Perspective Film Looks at Capital Bikeshare From Contemporary-Art Perspective
Film Looks at Capital Bikeshare From Contemporary-Art Perspective
Film Looks at Capital Bikeshare From Contemporary-Art Perspective
The Best of Transportation TED Talks: Part 2 The Best of Transportation TED Talks: Part 2
The Best of Transportation TED Talks: Part 2
The Best of Transportation TED Talks: Part 2

What role does transportation play in reducing carbon emissions and other pollution?

Transportation, the source of nearly a third of the United States’ greenhouse gas emissions, is the fast-growing source of carbon pollution globally.

In order to keep global temperatures below levels that are dangerous to humans, we must make a large-scale shift away from driving alone. Thankfully, even small changes, such as a modest increase in bicycling, can keep massive amounts of carbon out of the atmosphere.

If we can reduce the number of cars on the road and, more importantly, the number of total trips, then we can cut not only the carbon pollution threatening the climate, but also the particulate and ozone emissions that carry serious health consequences for communities living near major highways. More information.

Popular Environment Stories

Taking Fewer Car Trips is the Best Thing You Can Do for the Environment

As leaders from around the world are meeting over two weeks in Paris to advance collective action on climate change, it’s heartening to note that transportation continues to gain prominence as an accepted path to cleaning up pollution.

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Is China Considering a Divorce From Its Car Culture?

If the 20th Century was the era of America’s honeymoon with the car, the 21st has given way to the reluctant realization that this suitor has come with some baggage – air pollution, urban sprawl, obesity, and traffic congestion, to name a few.

View more

For Earth Day, Accountability for Transportation Agencies May Begin with Environmental Messages

As Earth Day approaches on April 22, it’s worth considering how well state departments of transportation talk about their environmental responsibilities.

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Recent Environment News

Uber, Lyft Get a Carpool Competitor in D.C.

Uber, Lyft Get a Carpool Competitor in D.C.


May 22, 2015    Jonathan Bollhoefer

Boston-based Bridj recently launched limited service between Capitol Hill and Dupont Circle in Washington D.C. to help fill a niche not being targeted by buses. Another company, Split, launched just a couple days ago and is similar to Uber and Lyft in that you order a car to your location to taxi you to your destination. The… Read more »

Is China Considering a Divorce From Its Car Culture?

Is China Considering a Divorce From Its Car Culture?


May 1, 2015    Paul Goddin

If the 20th Century was the era of America’s honeymoon with the car, the 21st has given way to the reluctant realization that this suitor has come with some baggage – air pollution, urban sprawl, obesity, and traffic congestion, to name a few. It is not just the U.S. that is contemplating a car “divorce.”… Read more »

Arlington County First in Nation with Program to Ease Public-School Staff Commutes

Arlington County First in Nation with Program to Ease Public-School Staff Commutes


April 22, 2015    Paul Goddin

The only transportation demand management (TDM) program for public school faculty and staff in the U.S. has been created in Arlington County, Virginia. The program, called “ATP Schools,” is being administered by Arlington Transportation Partners (ATP), the employer-outreach arm of Arlington County Commuter Services. Funded by a grant from Virginia’s Department of Rail and Public… Read more »

RYDE Helps Music Festivals Reduce Traffic with Crowd Sourcing

RYDE Helps Music Festivals Reduce Traffic with Crowd Sourcing


April 14, 2015    Amy Eagleburger

Music festivals are social events, so why not extend that experience to include a fun trip to and from the sites? RYDE, founded by Brian Allman and business partners Bob Aube and Paul Misso, sells individual seats on large luxury buses for a fee much lower than the prohibitive cost of renting a whole bus…. Read more »

For Earth Day, Accountability for Transportation Agencies May Begin with Environmental Messages

For Earth Day, Accountability for Transportation Agencies May Begin with Environmental Messages


April 1, 2015    Lloyd Brown

As Earth Day approaches on April 22, it’s worth considering how well state departments of transportation talk about their environmental responsibilities. A new report by the American Association of State Highway and Transportation Officials (AASHTO) Center for Excellence in the Environment, Benefits of Transportation: Telling America’s Transportation and Environment Story (full disclosure: I work for AASHTO… Read more »

3 Tech Ideas to Vanquish Your Driving Headaches

3 Tech Ideas to Vanquish Your Driving Headaches


February 2, 2015    Amy Eagleburger

Even with the popularity of bikeshare and growing use of public transportation by Millennials, 87.8 percent of all commuting is done by car in the U.S., according to a January 2014 study by the U.S. Department of Transportation. Also, in 2014, IHS Automotive found a 1.5 percent increase in cars on the road versus 2013… Read more »

Boulder Makes It Easy for Low-Income Residents to Take Bus, Bike, and Carshare

Boulder Makes It Easy for Low-Income Residents to Take Bus, Bike, and Carshare


December 22, 2014    Paul Mackie

When someone gives up her only parking spot in front of her home for a carshare vehicle for the whole community, you know you’re getting through to people. That’s exactly what happened in Boulder, Colorado – and may be happening even more soon – as a unique partnership began this year between the local housing… Read more »

TransitScreen Looks to Keep Up With Fast-Changing Transportation Landscape

TransitScreen Looks to Keep Up With Fast-Changing Transportation Landscape


December 11, 2014    Amy Eagleburger

The Washington D.C. area has a deceptively large number of transportation options. Metro, bikeshare and city buses, of course, but what about the D.C. Circulator busline or the Fairfax Connector buses? Is Car2Go actually the best way to get downtown in a hurry? Is there a way to provide this information that would push commuters… Read more »

San Francisco Law Helps Companies and Their Employees Ease Their Commutes

San Francisco Law Helps Companies and Their Employees Ease Their Commutes


November 19, 2014    Krute Singa

Over the past few months, Washington D.C. and New York City have each passed laws for employee commuter benefits, and Honolulu and Kansas City are considering it. So why the growing interest? Probably partly because these cities have seen how, in San Francisco, there has been an increase in the use of sustainable commuting modes… Read more »

Companies Using Games to Promote Active Employee Transportation

Companies Using Games to Promote Active Employee Transportation


September 9, 2014    Lucien Linders

Gamification will have a significant impact on mobility, traffic, and transportation. Games engage and involve people, and contestants solve problems and learn while playing. Apply the game principle to the field of transportation and the opportunity arises to work on hard-to-change habits such as the daily commute or texting while driving. One of the very… Read more »

Why Streetcars Aren’t a Waste of Money

Why Streetcars Aren’t a Waste of Money


August 12, 2014    Brandon G. Donnelly

This article was originally published at Architect This City. Last weekend a friend of mine sent me an article from The Economist talking about why trams, streetcars, and light rail are a waste of money. The argument is basically that steetcars are expensive, less efficient, and that — despite North America’s renewed interest in them —… Read more »

Hitchhiking Goes High Tech: The Story Behind CarmaHop’s Upcoming Launch

Hitchhiking Goes High Tech: The Story Behind CarmaHop’s Upcoming Launch


July 23, 2014    Jenny O'Brien

In 2010, my husband and I moved out to rural Northeast Kansas in order to live a more sustainable lifestyle. Our dream had one major flaw – a complete lack of public transportation. So these two save-the-planet sustainability groupies became just two more single-occupant vehicle drivers with big ugly carbon footprints. And we’re not alone. Forty-five… Read more »