emissions

A few weeks back, we looked at the numbers showing diesel sales in the U.S. increasing, just as hybrids are becoming more popular in Europe. That's a shift from current preferences, which sees more than half of European car sales fitted with diesel engines, but more hybrids sold in the U.S. than...

The Corporate Average Fuel Economy (CAFE) target of 54.5 mpg by 2025 has caused cheers from some people, and jeers from others. In reality, that target won't be as difficult to hit as the numbers suggest, as the average on EPA window stickers will be lower--closer to 40 mpg in reality. For some...

Electric cars are often described as "zero emission vehicles". That's true, to an extent - you won't find a drop of any substance eminating from their non-existent tailpipes. But naturally, they get their energy from somewhere, and that somewhere is a country's electricity grid. Those can be less...

Imagine if you were being charged tens of dollars to drive into the center of your home city each day. Around Europe, many drivers already face such a charge. London is one such city, and residents have been paying to enter the center of the capital since 2003. Low-emission vehicles have commonly...

The American Council for Energy-Efficient Economy (ACEEE) has announced its 'Greenest' and 'Meanest' vehicles of the year. Each year vehicles are given environmental scores based on fuel efficiency and emissions standards, as well as new measurements for estimating the environmental impact beyond...

The past couple of years, auto industry headlines have focused on 2025 and its high benchmarks for corporate average fuel economy. But there's a nearer-term deadline that's fast approaching, and it comes with its own set of emissions and fuel-economy standards. The good news is that many cars on...

This seems to be our time for debunking dumb stories about plug-in electric cars. First, we had to educate a Forbes columnist (and oil-industry consultant) about how the auto industry works. Now, it's time to offer some gentle guidance to all those journalists who covered last month's release of a...

Call it last week's most unexpected headline: the idea that a group of engineers in Britain had managed to create gasoline ("petrol") out of ... thin air? Indeed, it appears to be so--if you add energy (and sodium hydroxide). Here's how it works: The process starts by blowing atmospheric air into a...

This week, we received a press release from the University of Michigan with a stunning subject line: "Emissions from new vehicles down a record 20% in five years". "Okay", we thought, as we opened the email, "what's the catch?" As it turns out, that's a little complicated. Researchers at the...

Whether or not you subscribe to the theory that carbon dioxide released by human activity is to blame for global warming, theres no doubt that we do release a lot of CO2 into the atmosphere. Many countries have now introduced measures to curb those emissions, something that goes hand-in-hand with...

Public-health advocates have known for years that living around freight yards is hazardous to your cardiopulmonary health. In smog-susceptible Los Angeles, the Port of LA was a huge hotspot of toxic emissions. And seven years ago, the Port embarked on an ambitious program to eliminate the bulk of...

If you’re looking to buy an electric car, you’re probably familiar with the Environmental Protection Agency’s Fuel Economy website, which lists the gas mileage of every car on sale today along with the miles per gallon equivalent rating for every plug-in car. Unfortunately, the...

Virtually everything we do has an unavoidable impact on the planet in some way, if you trace the line far enough. Even if you're using solar-generated electricity to power your computer to read this article, your computer will still have used energy to produce, and to ship to you, and those solar...

Progress comes slowly to the world of commercial shipping, but it is coming. Three years ago, we noted that one giant cargo ship emits as much as 50 million cars. Now, shipping lines are starting to experiment with biofuels, which offer several advantages: They contain no sulfur or so-called...

London is making big claims that its Olympic games held this summer will be the greenest yet. To that end, it was announced last year that BMW would be supplying 4,000 of its low-emissions cars to the event, including 200 electric cars. The company has revealed that the first cars in its huge fleet...

Carbon footprints are a big talking point at the moment - they're your personal contribution to greenhouse gases, usually in terms of carbon dioxide, or CO2 emissions. The latest research out of Denmark suggests our footprints might be getting deeper as well as larger, with the news that CO2...

Fleet managers are very, very rational people. Unlike many retail car buyers, they analyze vehicles without a shred of emotion, basing their decisions on lifetime ownership costs for vehicles that meet their needs. More and more, though, those fleet buyers are being asked to help reduce their...

If you’ve purchased a new car in the U.S. over the past few years, the chances are you’ll be familiar with the gas mileage stickers that automakers are required by law to display in the window of each new car. But visit a Chevrolet dealer this year, and you’ll see 2012 Chevrolet...

It's a common question: Which is greener, continuing to drive my old car or buying a new, more fuel-efficient one? As with many such questions, the answer is: It depends. But one of the things it depends on is doing the math right. As much as we love CBS's The Fast Draw segments, we think Mitch...

When General Motors launched the Chevrolet Volt in 2010, the state of California decided that it didn’t meet the required emissions standards needed to classify it as an Electric Advanced Technology Partial Zero-Emissions Vehicle (e-AT-PZEV). At Launch, No HOV Lane Access As a consequence...