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Published: Thursday 05 September, 2013

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For their part, GM has entered into a collaboration with Swiss technology group ABB to search for ways to make better use of the battery pack in the Volt when it can no longer power the vehicle. The company also recently announced th shoes shopping at they will guarantee all 161 component parts of the battery pack for 8 years or 100,000 miles, a warranty that throws down the gauntlet for its competition but remains strikingly similar to that offered by Toyota for all of its vehicle hybridrelated components.

Emissions Perhaps no other factor matters more to the idea of a green vehicle than its emissions. A century worth of the internal combustion engines burning refined oil and spitting its byproducts out of automotive tailpipes has been held responsible for its share of the polluted air that hangs over urban centers, for the accumulation of greenhouse gases in the atmosphere, for pulmonary toxicity and health problems ranging from throat irritation to asthma shoes shopping to bronchial pneumonia.

The primary air pollutants created by cars include carbon monoxide, nitrogen oxides, ozone, lead, benzene and particulate matter. Smog itself, composed largely of ozone, is produced when hydrocarbons and nitrogen oxides from automobile exhaust react with sunlight.

Greenhouse gas emissions, meanwhile, are given in terms of annual amount of carbon dioxide CO2 emissions and shoes shopping we take advantage of that single, simpler metric as a starting point to compare the emissions of these vehicles. CO2 levels are without a doubt on the rise: According to the IEA World Energy Outlook, global CO2 levels are at around 390 parts per million. This is 40% higher than in the time prior to the Industrial Revolution.

The EPA estimates regarding tons of CO2 emissions annually what they term the vehicle carbon footprint include not only tailpipe emissions but also the CO2 emissions caused during the production and distribution of the fuel. Their figures assume 12,000 miles driven, meaning that we can go ahead and say that their figures are in tons per 12,000 miles. In order to be able to compare gas cars to electric cars, we once again need a shared metric, and for that we can use grams per kilometer g/km.

What the graph shows is that the best way to reduce CO2 emissions is not through alternative fuels per se, but rather through fuel efficiency, since the top of the list includes the Volt combined and the Prius, both of which enjoy high MPG ratings. shoes shopping

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