Cars to Blame Again: From autoblog.com:
Although it might not be a surprising revelation, some investigators in the Center for Development and Environment Research at the University of Oslo have published a report that quantifies and specifies what's the real effect of development and the environment. According to this report, transportation is responsible for 15 to 30 percent of the CO2 and O3 (ozone) that has been released to the atmosphere since the Industrial Revolution. The report considers these two gases as the most harmful and responsible from the greenhouse effect, and they both come out from tailpipes.
Cars with no Pollution (supposedly): The ZAP car (zero air pollution) is a lithium-ion battery using electric car. The tiny car is pricey, however ($30,000) and, of course, any claims of being pollution free have to be taken with a large sack of salt as the electricity used to charge the batteries is producing some pollution elsewhere. But, compared to GM and Ford, which may take another 3-4 years to produce an electric car, it's a start. The UPS branch in Petaluma, CA, has bought 42 ZAP trucklets, all the more surprising since that area is not known for dense urban development.
ZAP Automotive is currently launched the XEBRA in 2006, what we believe is the first 100% production electric vehicle (“EV”) not designated as a “low speed vehicle” (“LSV”). In fact, we believe the XEBRA is the only production EV available in the United States with a top speed of up to 40 mph.
Cars that run on Air (purportedly): The aptly named AirCar has some fascinating technological innovations; check out the cool website for details. it can run on compressed air or regular fuel, and the engine is used to pressurize the air tanks. Incorporating complex mechanisms (that's an articulated con-rod shown from the AirCar website) and an electric motor-alternator-regenerative-braking-system, there's stuff to keep any gear-head happy. But is it real? India based Tata Motors (they of the $2,500 car,) has signed a joint technology sharing agreement.
Its application to Compressed Air Technology(CAT) vehicles gives them significant economical and environmental advantages. With the incorporation of bi-energy (compressed air + fuel) the CAT Vehicles have increased their driving range to close to 2000 km with zero pollution in cities and considerably reduced pollution outside urban areas.