emissions

Daniel Yergin is one of those authors who writes major works. His Pulitzer Prize-winning The Prize is nothing less than the definitive history of the rise of the petroleum industry, and his latest, The Quest: Energy, Security, and the Remaking of the Modern World, starts where that book left off...

The NHTSA and EPA are closing in on their final rules for 2017-2025 corporate average fuel economy regulations, but there's a wild card in the pack. California, which has the authority to set its own emissions laws, is going along with the proposed gas-mileage levels, which will take 2025...

When cable TV’s “MythBusters” program recently investigated the idea that emissions from motorcycles are gentler on the environment than emissions from cars, they burst the bubbles of eco-enthusiast motorcycle riders—and put a small New York company’s innovative...

We all know that the venerable Toyota Prius is the most well-known of all hybrids on the market today, both in terms of numbers made and its impressive gas mileage. But if you’re in the market for a used hybrid you might be surprised to know that a used 2006-2010 Honda Civic Hybrid might be...

If you’re in the market for a new car, but the current offerings of electric, plug-in hybrid and hybrid cars aren’t suitable there’s an often-overlooked way to get better gas mileage - more gears. In recent years we’ve seen six and seven speed automatic gearboxes becoming...

EV fans are probably sick of arguing the case for electric cars whenever someone brings up the old "well to wheels" scenario. "Well, where does the electricity come from?" they ask. Familiar with it? Most of us have pre-prepared figures as to why EVs are cleaner, even considering the fuel burned to...

If you've ever visited a museum or a manufacturing plant, you've probably heard a tour guide say something like this: "And if you laid all these bottles end-to-end, they'd stretch clear across the state of Kansas!" Through time and repetition, certain comparisons have become standardized, so that...

The 1955 Chevy Bel Air built by GM Performance Parts isn't exactly green, but it is a step in the right direction.

In its latest Environmental Annual Report 2011 Honda has committed to reducing the CO2 emissions of its global product portfolio, including everything from jets to cars and motorbikes and even power generators, by 30 percent compared to 2000’s levels by the year 2020. At the same time, the...

Thursday, June 16 marks the sixth annual “National Dump the Pump Day.” A collaboration between the American Public Transportation Association (APTA), the Sierra Club and the Natural Resources Defense Council, Dump the Pump Day encourages commuters to hang up their car keys and give...

Cars that consume less fuel have many benefits, including lower gasoline costs. Now it turns out that they also bring significant public-health benefits, reducing health-care costs and premature deaths from cardiopulmonary causes. The challenge is that the costs and benefits aren't equally spread...

You don't need to be a mathematician or a fortune-teller to figure out that most modern scooters are more eco-friendly than their four-wheeled kin. But can they really save the planet? A new infographic circulating across the web claims they can. Unfortunately, it doesn't tell the whole story. The...

Americans aren't stupid. We're just badly informed. And occasionally, stubborn. Why else would we ignorantly cling to using miles per gallon as the way to measure how efficiently a car uses fuel? But maybe you don't quite see the problem. OK, so here's a little test: Which saves more gasoline...

Governments around the world are bowing to public pressure to reduce the levels of greenhouse gases their respective countries produce, and more often than not, the first sector they look at is the auto industry. Here in the U.S. the government has imposed a tough 34.1 mpg fleet-wide fuel economy...

Cutting carbon emissions is complex. And there are a lot of myths and misinformation out there. The effective impact of some actions--reusing your grocery bags, for instance--is relatively low. Other methods, things that many people never even consider, are considerably more effective. For...

Over six days of driving—limited to around-town trips—we put about 103 miles on a fleet-test Toyota Prius Plug-In, averaging 90.8 miles per gallon. In that time, we gave the Prius Plug-In five full charges and two partial ones, and according to the trip computer, we covered 77.7 miles...

Sweden has, for several years, led the world in per-capita green-car ownership. And it's managed to strengthen economically without increasing industrial carbon emissions. But it's emitting more from its tailpipes. Swedes are driving more—enough to wipe away any the gains from greener...

Believe it or not but even a manufacturer of high-performance supercars endowed with V-8 and V-12 engines can be conscious about the environment. Take Ferrari, for example. The Italian marque has used this week’s 2011 Geneva Motor Show to present a new version of its stunning 458 Italia...

We've all heard the stories about people who hang onto their cars for decades. Irv Gordon's 1966 Volvo P1800 is one; he's got more than 2.6 million miles on it now, after buying it new for $4,150. Then there's Rachel Veitch, who at 91 has logged 562,000 miles--and had no fewer than 18 batteries and...

Despite criticism from the auto industry, it looks like the EPA may be sticking to its guns and planning to launch new redesigned gas-mileage stickers for new cars that feature a prominent letter grade. The letter-grade scheme was one of two alternatives introduced for public comment last August...