Adding extra batteries to hybrids, and a plug to charge them, is a good way to save gas, replacing it with electricity from the grid. Indeed, drivers could commute to work and back using almost no gasoline. Such “plug-in” hybrids have garnered support from those who hope to reduce consumption of foreign oil.
But it hasn’t been completely clear that replacing gasoline with electricity produced largely from fossil fuels would help reduce greenhouse-gas emissions. And some have feared that using more electricity would drive up levels of sulfates, ozone, particulates, and other pollutants in the air.
A study released today by the environmental group National Resources Defense Council and the Electric Power Research Institute helps clear up these issues, showing that
plug-ins, once they’re on the market, will significantly cut greenhouse gases. They’ll also decrease other pollutants, on average, across the United States.
A Roomba recorded a woman on the toilet. How did screenshots end up on Facebook?
Robot vacuum companies say your images are safe, but a sprawling global supply chain for data from our devices creates risk.
A startup says it’s begun releasing particles into the atmosphere, in an effort to tweak the climate
Make Sunsets is already attempting to earn revenue for geoengineering, a move likely to provoke widespread criticism.
10 Breakthrough Technologies 2023
These exclusive satellite images show that Saudi Arabia’s sci-fi megacity is well underway
Weirdly, any recent work on The Line doesn’t show up on Google Maps. But we got the images anyway.
Get the latest updates from
MIT Technology Review
Discover special offers, top stories, upcoming events, and more.