The debate as to whether cars cause global warming has been raging for many years now. From environmentalists to motor vehicle owners, everyone has had their say on the matter. To make an objective assessment, one must consider both the positives and negatives of owning a car. While cars are an important mode of transport, the emissions they produce can have a negative impact on the environment, contributing to global warming.
When discussing whether cars are responsible for global warming, the first point to be made is the fact that they produce emissions in the form of gases such as carbon dioxide, nitrogen oxides and particulate matter. These gases trap heat in the atmosphere, resulting in higher air temperatures, leading to more melting of glaciers, rising sea levels and extreme weather events. Extensive scientific studies have established that greenhouse gas emissions from passenger cars account for about 17-19% of all global greenhouse gas emissions and about 32% of direct CO2 emissions from the transport sector.
It isn’t all doom and gloom, however. Modern cars offer more fuel efficiency and lower emissions than older models. The EPA reported that the average mpg for new cars has almost doubled from 21 miles per gallon to 39 miles per gallon since 1978. Automobile manufacturers are developing new technologies as well, such as electric cars and hybrid cars, that run on alternative fuels and produce fewer emissions. In addition, governments are introducing new policies to reduce vehicle emissions, such as emissions trading schemes and fuel taxes.
Clearly, cars are one of the major contributors to global warming and the associated effects should not be underestimated. Yet, there are steps that can be taken to reduce the emissions that motor vehicles produce. Governments, automakers and individuals all have a role to play. Governments can work on improving fuel efficiency standards, reducing emissions and subsidizing alternative fuel sources. Automakers can focus on developing greener cars and incentivizing consumers to purchase them. And individuals can choose to drive more fuel-efficient cars and use public transport whenever possible.
Ultimately, it is undeniable that cars are responsible for global warming and measures must be taken to reduce their carbon footprint. Climate change is one of the most pressing issues of our time and needs to be addressed promptly. Awareness and action are essential if we are to have any hope of mitigating its impacts.
