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Motorized transport in the twentieth and twenty-first centuries has had huge social and environmental implications. In most developed countries cars, buses, taxis and trucks are an essential part of the economy and relied upon in daily life.
However, these motorized vehicles use huge quantities of fuel. The fuel is made of scarce valuable oil which cannot be replaced and which will not fully combust, contributing to world pollution.
Solutions to the problem include finding more sustainable environmentally-friendly alternative fuels, limiting the effect that automobiles have on the environment or preventing personal use, especially for recreation. Gasohol is one alternative fuel, hydrogen fuel may be used as it only produces water vapor and electric cars are being considered. Many, however, believe public transport would be the best option to protect the environment and also avoid traffic congestion.
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