By replacing short car trips, cycling saves the air from noxious pollutants, saves the commuter the cost of gasoline and requires less asphalt than auto traffic and parking. Fossil Cars Stink. While carbon monoxide, VOC's, nitrous oxide, and other emissions contribute to cancer, asthma, and lung diseases. Carbon dioxide is implicated in global warming, sulfur dioxide causes acid rain, and oil spills have polluted our oceans, rivers, and lakes. By discouraging physical exercise, cars contribute to obesity, heart disease, diabetes, and cancer.
Cars add to noise, stress, congestion, and are responsible for urban sprawl.
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