As someone who is concerned for the environment, you may be troubled with the number of cars, trucks, SUVs, and other commercial vehicles you see on the streets everyday. You're aware that each of these vehicles is polluting the air to some extent, and some more than others. While we haven't come up with the solutions to make our air pollution-free, and our vehicles capable of running without emissions, automobile manufacturers are obeying the new laws, and are striving to meet the standards that the public expects.

While we can't expect to stop global warming in a day or a year, companies like General Motors are doing their part to promote hybrid vehicles and more fuel-efficient autos. Although GM is know for its behemoth Hummer (H1), even they are starting to look at what people are asking for, and they've come out with a less consumptive version, the Hummer 3 - H3. There's still a significant price-tag attached, and the Hummer H3 price isn't going to make everyone run out and buy one, even if they're able to afford a Hummer H3 accessory or two, but it shows to some small extent that the auto manufacturers are taking steps, even if they're just baby ones.

When we look at what vehicles are doing to the environment, and what they're contributing to climate change, we need to stop focusing on just the scapegoats like the Hummers and other SUVs, and focus on the big problems, like airliners and other "big" consumers. Of course, there are other options as well, such as mass transit, carpooling, working from home, and personal-powered alternatives (walking, bicycles). We can't pick on the big trucks when we're driving our economy cars alone, commuting to and from work everyday.