Study links air pollution to higher COVID-19 death rates

Electric power plant outside Ithaca, New YorkPeople with the novel coronavirus, formally known as COVID-19, are more likely to die from the virus if they live in areas with high air pollution, according to a study from the Harvard T.H. Chan School of Public Health. The study, updated Sunday to include the latest data, looked at 3,080 United States counties, comparing levels of...

Coronavirus shutdowns could be bringing best air quality in decades

New York City skylineThe unprecedented social distancing measures put in place by many countries to slow the spread of coronavirus have already produced a measurable effect in one important area--emissions. The slowdown of human activity in many of the world's most populous, most heavily industrialized countries has led to the best air quality in decades. Satellite...

Study: Particulate emissions from tire wear is higher than from tailpipes

Michelin X-Ice winter tiresTire and brake wear could be the next front of emissions testing, according to Emissions Analytics, an organization that conducts independent emissions tests. Emissions Analytics found that emissions of particulate matter from tire wear can be 1,000 times worse than from tailpipes. Particulate matter refers to solid material emitted by vehicles...

Gasoline direct injection tech might not be worth it, study suggests

Exhaust emissions from tailpipe [photo: Simone Ramella, 2005, used under Creative Commons 2.0]While significant sooty black deposits—and even, occasionally, visible puffs coming from the tailpipe—used to be a sign your gasoline car needed a tune-up, they’re a normal fact of life with many newer cars that are supposedly cleaner-burning. What’s the disconnect? While the modern gasoline direct-injection technologies...

Uber and Lyft are adding to air pollution, campaign argues

Uber electric carEurope’s leading clean-transportation group has allied with other organizations on the Continent plus the Sierra Club in the U.S. to get the word out that in the largest, most congested cities, ride-hailing services are adding to issues with pollution and congestion—not easing them. An analysis released last week by the European group...

EPA chief Wheeler says under new rules CO2 limits will be tighter

EPA Acting Administrator Andrew WheelerThe Trump administration may be on a mission to curb environmental regulation, but EPA chief Andrew Wheeler revealed Tuesday that its new emissions rules should actually cap CO2 output at a lower levels than those set by the Obama administration. How? By removing loopholes. "In some of the out years, we’re actually more restrictive on CO2...

SUVs are 2nd-largest contributor to CO2 increase this decade

2019 Chevrolet Suburban RST Performance PackageWhile individual vehicle emissions have decreased on a per-mile basis over the past decade, shifts in consumer habits are pressuring CO2 production upward, an upcoming publication says. The growth in the SUV sector has made them the second-largest contributor to increasing CO2 emissions over the past ten years, contributing more than heavy...

See how emissions from driving have changed in your city

Traffic in Los Angeles on Google MapsDespite advances in fuel efficiency and emissions control and the proliferation of hybrid and battery-electric cars over the past three decades, CO2 emissions from transportation sources continue to rise. Data compiled by Boston University shows that the majority of that growth has come from large metropolitan areas, and in most urbanized parts of...

American commute times reached record highs in 2018

Traffic in Atlanta, Georgia during rush hour (via Wikimedia)The average American now spends 54 minutes commuting each day (27 minutes each way), or 20 minutes more each week and 17 hours more each year than they did a decade ago, according to the U.S. Census Bureau. Commute times have been on the rise since 1980, The Washington Post reported Monday. Over that period, Americans have sacrificed the...

California deal interrupts White House emissions rollback effort

Southern California traffic - by flickr user David R. BlumeRancor in the White House over the move by four automakers to strike a side deal with California over emissions and fuel-economy rules looks likely to further delay President Trump's plans to roll back the Obama-era standards. That's the conclusion of a report Tuesday in The New York Times, which cited four people familiar with the talks. After...

States, Cities sue EPA over Clean Power Plan rollback

Coal power plant in ChinaThe power grid that electric vehicles plug into will get cleaner over time. But depending on where you are, the rate at which it cleans up could have a lot to do with something that’s headed to the courts. A lawsuit filed Tuesday by 22 states and seven cities, in the United States Court of Appeals for the District of Columbia, aims to...

California could soon close one of the dirtiest diesel-emissions loopholes

Fitzgerald Glider Kits headquarters in Crossville, TennesseeWe’ve all seen it while following big rigs: Clouds of sooty smoke coming from a single truck, prompted by an uphill grade, a passing maneuver, or sometimes seemingly nothing at all. How can that be legal? It might not be legal, but it underscores a current loophole in U.S. emissions for larger (Class 4-8) trucks: There’s no mechanism...