Stories by Julia Pyper

How can EVs help or hurt the electric grid?

From the agencies to Antarctica, work picked up anew

Switching to natural gas and other alternatives may prove cost-effective and environmentally friendly

Backup generators and islanded mini-grids helped some parts of New York City keep the lights on after Hurricane Sandy

Travel by car has been declining for several years now

Competing standards for the fast-charging of electric cars could put continued growth at risk

The wonder material invented in the U.S. long ago can help enable more efficient engines and renewable energy technologies

The solid battery could also prove cheaper than current lithium-ion technology once developed

Smart cars already boast wi-fi, GPS, cameras, radar and other sensors and, in the not too distant future, may drive themselves

Atolls and other low-lying islands in the Pacific Ocean may not slip under the waves but they will likely become uninhabitable due to overwashing waves

A conference at the American Association for the Advancement of Sciences notes that the incremental steps taken to address global warming are not enough

The United Nations' commitment to sustainable energy access could help prevent excess greenhouse gas emissions

With plans that incorporate efforts made by the Commerce, Agriculture, Energy, Transportation and Defense departments, among others, the administration's effort acknowledges that climate impacts are happening now and require action

Fueling cars and trucks with natural gas may help reduce oil dependence even more than electric cars

Electric motors are not just for cars anymore but now appear in trucks, vans and sport utility vehicles

Hurricane Sandy has revealed that New York City's efforts to adapt to climate change may have to be upgraded--and sped up

By cutting down on steel and other heavy materials, vehicles can be made lighter, boosting energy efficiency

Hydrogen fuel cell vehicles remain rare but could find an ally in newly abundant and cheap natural gas

Despite the prospect of less reliance on oil, electric vehicles are not proving popular with the car-buying public

New cars and trucks could improve fuel efficiency by 50 percent if existing technologies such as hybrids are adopted

A new attachment can improve school bus fuel economy by as much as 20 percent

New regulations prevent ships from burning highly polluting bunker fuel in American territorial waters

New research notes that in recent years U.S. roadways have taken a beating from the global warming that cars helped cause

Blending ethanol brewed from corn into gasoline stocks is not bringing down fuel prices, an M.I.T. study finds