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75Modern diesels pollute over 20% less than those from 10 years ago

Today, if you're a car company and you offer a diesel engine in this market, you have to go to great lengths to show consumers that it's less harmful to the environment than a gas-powered engine. That's why marketing types have come up with TDI Clean Diesel and EcoDiesel and BlueTec and so on, rather than just plain old "diesel." How much cleaner are today's oil burners, though?

44Canada announces alignment of emissions standards with US

Peter Kent, Canada's Environment Minister, has announced his country will adopt the United States Tier 3 emissions standards for passenger vehicles. Kent (shown above) says doing so will reduce air pollution from new vehicles by around 80 percent compared to the old Tier 2 standards currently in place. The Tier 3 standards will include tighter limits on the amount of emissions from new cars and light trucks as well as reduce the amount of sulfur in gasoline from 30 parts per million to 10 parts

AddYour car's exhaust can cause, not just trigger, kids' asthma

Stick your head too close to an old car's exhaust, and we're willing to be dollars to donuts that you'll start coughing. It turns out that vehicle exhaust isn't just bad for you until the air clears. All that nastiness has a serious long-term effect, and can even cause asthma in children.

39Should there be a fossil fuel moratorium? Some scientists say yes

Climate change was barely mentioned during October presidential debates, but that doesn't mean the public doesn't care. After all, climate change affected Hurricane Sandy, and that got some media coverage. Some analysts say climate change is just part of historic weather patterns that humans have little say over but most scientists say humans play a big part in the matter, in part through our increasing consumption of fossil fuels.

52Report: London mayor Boris Johnson wants $200 fines for unnecessary idling

London Mayor Boris Johnson is looking to crack down on those drivers who idle aimlessly. The politician has proposed a plan to reduce emissions and noise pollution in his city by imposing hefty fines of up to £120 for anyone caught sitting around with their engine on. That's nearly $200, for those of you who count in U.S. dollars.

40Show off your environmental (un)friendliness with the Puff illuminated pollution meter

Now this is clever. Designer and artist Karolina Sobecka has worked up an interesting project for the World Maker Faire in New York City aimed at making motorists more aware of their carbon emissions. The system is made up of two devices – a cartoon-like cloud that attaches to the vehicle's exhaust pipe and an iPhone app that monitors the vehicle's emissions. The more carbon the car spews, the more the cloud changes color so that both the driver and everyone in the nearby vicinity knows ex

24Report: Porsche planning two new engines for Boxster?

2011 Porsche Boxster Spyder - Click above for high-res image gallery

20Ford exec: Drive greener or else!

In an interview with Whatcar?, Ford's global product development boss Richard Parry-Jones said car buyers need to embrace greener cars if global warming is to be overcome. In fact, Parry-Jones goes on to say it's the role of the consumer, not car manufacturers, to save the planet from polluting automobiles. Government incentives for eco-conscious car shoppers, not punishment of manufacturers, is the way to go, he said.

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