Why We Need Electric Cars

Image Gallery The electric car that almost changed the world, GM’s EV1. SONY PICTURES CLASSICS

We already have the technology we need to cure our addiction to oil, stabilize the climate and maintain our standard of living, all at the same time. By transitioning to sustainable technologies, such as solar and wind power, we can achieve energy independence and stabilize human-induced climate change.

Increasing transportation efficiency is the best place to start efforts to reduce emissions of carbon dioxide (CO₂), which is a primary culprit in global warming. Of all CO₂ emissions in the United States, about 33 percent comes from transportation.

The chart in the Image Gallery shows the overwhelming advantages of plug-in hybrid vehicles and all-electric vehicles (EVs) over gasoline vehicles. With gasoline-electric hybrid power and all-electric power, we can achieve significant cost and environmental savings. By adding more batteries and recharging capability to gasoline-electric hybrid vehicles, we can have plug-in hybrids that offer the range of hybrids (500 miles or more), plus the benefit of all-electric power for short trips, which dramatically reduces the amount of gasoline used. EVs require no gasoline whatsoever and, when recharged from renewable energy sources, produce zero total emissions.

In fact, even if we switched from gasoline cars to EVs and plug-in hybrids recharged by our existing utility grids (which mostly use fossil fuels), we would see a 42 percent national average reduction in CO₂emissions, according to research by Peter Lilienthal of the National Renewable Energy Laboratory (for more details, see the map in the Image Gallery).

As we approach the peak of world oil extraction and witness the consequences of climate change, it is important to reflect on how the world’s most technologically advanced nation came to base its economy on the use of polluting, finite resources. It is also important to recognize that corporations exist, for the most part, for one reason: to make money. This gives us, the consumer, the ultimate power to shape corporate behavior through how we spend our money.

Sun to Wheel

Transportation efficiency is usually measured without regard for how fuel ends up in the tank, we just assume it will be there. It’s time to develop a better method, one that considers the finite nature of fossil fuels and how their use affects the planet’s ability to support life. Ultimately, almost all energy on Earth comes from the sun, so fuel efficiencies should be measured from sun to wheel.