The first major emission controls on motor vehicles were introduced in 1975 with the advent of the catalytic converter. Today's cars emit less than 1 percent of the three "criteria" pollutants that came out of their tailpipes half a century ago. They emit relatively so little carbon monoxide, nitrogen oxides, and hydrocarbons that the collective... Cars now clean enough that household products rival them for air pollution
The first major emission controls on motor vehicles were introduced in 1975 with the advent of the catalytic converter. Today's cars emit less than 1 percent of the three "criteria" pollutants that came out of their tailpipes half a century ago. They emit relatively so little carbon monoxide, nitrogen oxides, and hydrocarbons that the collective... 
![Electric-car wells-to-wheels emission equivalencies in MPG, Mar 2018 [Union of Concerned Scientists]](https://images.hgmsites.net/tmb/electric-car-wells-to-wheels-emission-equivalencies-in-mpg-mar-2018-union-of-concerned-scientists_100646029_t.gif)
More good news about electric cars in the U.S.: the emissions associated with the electricity used to charge them have fallen. Again. Based on the latest data on powerplant emissions from the EPA, an electric car on the road in the U.S. now has average emissions as low as an 80-mpg car. DON'T MISS: Electric cars cleaner than any gas-only car for... 
![Global carbon dioxide emissions, 1850-2030 [CO2 Information Analysis Center, World Energy Outlook]](https://images.hgmsites.net/tmb/global-carbon-dioxide-emissions-1850-2030-co2-information-analysis-center-world-energy-outlook_100631742_t.gif)
The most recent detailed studies on the likely warming of Planet Earth are grim indeed, suggesting that we are collectively at "very high risk" for the most extreme effects of climate change. To stem that, mankind collectively will have to reduce its ongoing emissions of carbon dioxide radically and immediately. Now, one longtime advocate of... 
It is now abundantly clear that the Trump administration in the U.S. is staffed with climate-science denialists and committed promoters for the greater extraction, sale, and combustion of fossil fuels. That includes coal, the dirtiest major fossil fuel of them all, with the highest emissions of carbon dioxide per kilowatt-hour when used to... 
The processes of climate change don't care about politics. Or economics. Or public sentiment about science. Last December, an analysis showed the most accurate climate-science models to date predicted the worst effects in future years. Now, two more grim assessments have arrived. DON'T MISS: Most-accurate climate-change models suggest worst... 
It's been clear that under the Trump administration, the NHTSA and EPA plan to roll back linked fuel-economy rules and emission limits on new vehicles. Now a possible justification that will be used has emerged—and it's not the one many advocates had expected. According to a Bloomberg report on Monday, the fuel-economy proposal due March 30... 
Today, there are roughly 750,000 plug-in electric vehicles on U.S. roads and about 3,800 powered by hydrogen fuel cells. Proponents of each type of vehicle argue strenuously that their powertrain is a better way to produce vehicles with zero emissions from the tailpipe. Electric cars can be charged at home overnight, and electricity in many areas... 
If a marketer talked enthusiastically about "healthy delicious cyanide," what would you think? You may wish to apply those judgments to mentions of "beautiful clean coal" by President Donald Trump, who used the phrase in Tuesday's State of the Union address. Trump claimed his administration had "ended the war" on "beautiful clean coal," while... 
The subject of carbon dioxide emissions is hardly a simple one, especially when it comes to electric cars. They may not have tailpipes, but the electricity generated in order to keep them going has to come from somewhere. Electric utilities, it turns out, are doing their bit to reduce carbon emissions—and that makes it even more important... 
Last month, U.S. Energy Secretary Rick Perry signed an agreement with Saudi Arabian officials to research "carbon capture" technology for fossil fuels, the Department of Energy announced. Perry and Khalid Al Falih, the Saudi Minister of Energy, Industry, and Mineral Resources, signed a memorandum of understanding to "establish a framework for...