U.S. Carbon Emissions Fall to Lowest Level in Two Decades

A new report indicates that carbon dioxide emissions in the U.S. have fallen by 13% in the past five years. The last time carbon emissions were this low, Ace of Base was topping the charts and "Pulp Fiction" was reviving the career of John Travolta.

1 minute read

February 1, 2013, 10:00 AM PST

By Jonathan Nettler @nettsj


Suzanne Goldenberg discusses the findings of a report compiled by Bloomberg New Energy Finance (BNEF) for the Business Council for Sustainable Energy (BCSE), which attributed the drop to "new energy-saving technologies and a doubling in the take-up of renewable energy."

"As described by Bloomberg, the US is in the throes of a major shift in energy production. Coal fell to just 18.1% of America's energy mix last year, down from 22.5% in 2007. Oil use also declined." At the same time total energy use fell. "Most of the emissions cuts were due to installing more efficient heating and cooling systems in commercial building. Other cuts in emission came from transport, with 488,000 Americans last year opting for hybrid and plug-in vehicles."

"By the end of last year," she notes, "America's emissions of carbon dioxide and other greenhouse gas emissions had fallen 10.7% from the 2005 baselines."

"The reduction in climate pollution – even as Congress failed to act on climate change – brings America more than halfway towards Barack Obama's target of cutting emissions by 17% from 2005 levels over the next decade, the Bloomberg analysts said."

Friday, February 1, 2013 in The Guardian

Young Professional

I love the variety of courses, many practical, and all richly illustrated. They have inspired many ideas that I've applied in practice, and in my own teaching. Mary G., Urban and Environmental Planner

I love the variety of courses, many practical, and all richly illustrated. They have inspired many ideas that I've applied in practice, and in my own teaching.

Mary G., Urban and Environmental Planner

Get top-rated, practical training for planners

Passengers board an Amtrak train under a cloudy sky.

Amtrak, CN end decades-long dispute with eight-year agreement

The new operating agreement establishes an updated framework for the companies to work together, including processes to resolve disputes.

September 18, 2026 - Mass Transit

The Gross Reservoir, a large body of water surrounded by trees and mountains.

Judges permit Denver to divert 77,000 acre feet from the Colorado River for reservoir expansion

Overuse and climate change have caused the Colorado River’s water levels to plummet.

September 18, 2026 - Inside Climate News

A coal power plant in Iowa billows smoke into the air.

Nation's most wind-powered state turns to coal as data centers increase energy demand

For the first time in decades, Iowa has increased its generation of coal power.

September 17, 2026 - Inside Climate News

A crowd of people boarding Boston's green line in an underground subway station.

Boston has spent millions making the Green Line more accessible — and there’s no end in sight

While the city has invested millions into expanding and adding platforms to the Green Line to make it more accessible, new train cars set to arrive next year will be too tall for disabled passengers to board without raising the current platforms.

September 22 - Boston Globe

Railroad tracks in Idaho passing a home by a river.

Idaho may see an 18% drop in federal surface transit funding — the largest estimated cut in the US

Transit systems in rural communities are much more reliant on federal funding to provide their services.

September 22 - Grist

A Florida family with their belongings in a wagon walks past a destroyed storm after a hurricane.

How ‘post-disaster gentrification’ alters neighborhoods after natural calamities

After hurricanes, fires or other calamities, the original residents of a community are often replaced by younger, wealthier residents.

September 22 - Inside Climate News