Marianne Lavelle, energy editor for National Geographic Digital Media, has spent more than two decades covering environment, business, climate and policy in Washington, D.C. Previously, she spearheaded a project tracking climate change lobbying for the nonprofit, nonpartisan journalism organization The Center for Public Integrity. Before that, she was a senior writer at U.S. News and World Report magazine, where she wrote the Beyond the Barrel blog. Before joining U.S. News, she created a beat on federal regulation for The National Law Journal, and led a team of reporters in a series on environmental justice, “Unequal Protection," winner of the George Polk Award and numerous other honors.

Comments Off on NG Explorer Culhane Shows Garbage-Energy Isn’t Science Fiction

When I set out to write a  story about the energy possibilities of garbage, portrayed as nothing but a sci-fi gag in the movie Back to the Future Part II, I knew I had to check in with National Geographic Emerging Explorer T.H. Culhane. (See related, “Four Energy Ideas ‘Back to the Future’ Got (Almost)…

British Columbia finds itself at the forefront of the global debate on natural gas, and its role in the future of energy. Some 15 energy company consortiums are vying to build massive export terminals on the Pacific coastline of Canada’s westernmost province, with an eye to shipping gas to energy-hungry Asia. British Columbia, in other…

Istanbul, the only city in the world that spans two continents, is a perfect setting for a close look at the energy and sustainability challenges of our increasingly urban planet. With 14 million people, Istanbul is the largest city in Europe. But energy demand here and across Turkey is growing at a rate more typical…

In his call Tuesday for boosting the fuel economy of heavy-duty trucks, President Barack Obama is taking aim at one of the world’s fastest growing engines of oil demand and greenhouse gas emissions. But one of the most popular ideas for reducing oil demand in trucking—switching to natural gas—may not help on climate change. A…

Comments Off on Methane Emissions Far Worse Than U.S. Estimates, But Study Concludes Natural Gas Still Better Than Coal

Emissions of the potent heat-trapping gas, methane, the main component of natural gas, are likely 50 percent higher than U.S. government has estimated in its official greenhouse gas inventory, says a new study that is the most comprehensive effort yet to assess the problem. But the team of scientists, after reviewing more than 200 earlier…

Oil has begun flowing on the southern segment of North America’s most controversial pipeline project: the Keystone XL. TransCanada announced Wednesday that it had begun operations to send crude from the congested pipeline and storage hub of Cushing, Oklahoma to the refining center of the U.S. Gulf Coast. (See related Interactive: Mapping the Flow of…

U.S. officials are weighing a wide range of actions to address what they view as the increasing public risk due to oil trains. Thanks to the booming oil production in North Dakota’s Bakken shale, and the ramp-up of ethanol production throughout the Midwest, U.S. railways now are carrying an unprecedented volume of flammable liquid—and the…

A new study challenges our understanding of natural gas as a clean fuel, and raises new questions about the U.S. energy boom. Sure, natural gas (or methane, its main component) burns with less pollution than coal, but release it directly to the atmosphere and it is a highly potent greenhouse gas–at least 25 times worse…

At climate change talks in Warsaw this week, just as in the previous 18 annual rounds of negotiations, delegates never were able to overcome the divide between rich and poor nations. We map the starkly different views of the climate crisis that have led to stalemate in our newly revised interactive, Four Ways to Look…

For the first time in the history of its program to promote biofuel as a replacement for petroleum-based fuels, the U.S. government proposed Friday to reduce the amount of ethanol that is required to be added to the nation’s gasoline supply. The move by the world’s No. 1 producer and consumer of biofuel reflects profound…