The environmental impacts of cars, explained
Automobiles have a big footprint, from tailpipe emissions to road infrastructure
CARS CAN CONVEY a sense of freedom and movement, not to mention style and status. But they also can have a big impact on the planet. Here's a few key areas to consider.
Production and Destruction
Cars consume a lot of energy before they ever make it to the open road. Automotive production leaves a giant footprint because materials like steel, rubber, glass, plastics, paints, and many more must be created before a new ride is ready to ro ll.
Fuel Costs
Petroleum products raise environmental red flags even before they are burned. Extracting them from the earth is an energy-intensive process that can damage local ecosystems. Shipping fuels can also consume a lot of energy, and creates an occasional environmental disaster such as an oil spill. As world demand rises, and unconventional fuel sources, such as oil sands, become more economically viable, the ecological impacts of petroleum extraction might also increase dramatically. That’s one more reason why fuel efficiency is so important.
It's also partly why electric-powered vehicles can help reduce environmental impacts, because they don't burn fossil fuels.
Air Quality
Vehicles are America’s biggest air quality compromisers, producing about one-third of all U.S. air pollution. The smog, carbon monoxide, and other toxins emitted by vehicles are especially troubling because they leave tailpipes at street level, where humans breathe the polluted air directly into their lungs. That can make auto emissions an even more immediate health concern than toxins emitted high in the sky by industrial smokestacks.
Infrastructure
Also difficult to quantify, another associated impact of cars is the building of roads to support them, as well as the urban sprawl that tends to follow in their wake. This issue can be difficult to tease out of other factors, such as population growth and resource consumption, but it is also not easily addressed by technological advancements like fuel efficiency and electric propulsion. Road building has a big impact on emissions and wildlife
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