Even for 2019 vs 2018 average per-vehicle short wheelbase light-duty vehicle U.S. driving, those numbers too rose!

As we saw here on the Air Quality Matters blog on Jan. 13, 2021 in the post: “The respective gain, dip in light-duty vehicle travel miles, fuel-economy in America and what’s driving the change,” there were increases in aggregate light-duty vehicle (LDV) road-travel miles (VMT) 2019 versus 2018, and adding injury to insult was the … Read more

The respective gain, dip in light-duty vehicle travel miles, fuel-economy in America and what’s driving the change

As reported in a ScienceBlog post dated Jan. 7, 2021, in 2020, due to the lockdowns connected with the coronavirus pandemic, this caused emissions of carbon dioxide in the atmosphere to drop by seven percent. The dip is temporary as atmospheric carbon dioxide levels are expected to bounce back to 2019 levels when the economy … Read more

First fully battery-electric line-haul loco begins testing on BNSF between Stockton and Barstow

The below Jan. 4, 2021 news release is from Burlington Northern Santa Fe Railway. BNSF Railway Company … and Wabtec’s … exploration of the future potential of battery-electric locomotives crosses another significant milestone this week as they begin testing the technology in revenue service between Barstow and Stockton, California. As BNSF seeks ways to further … Read more

Leading by example: California shows continued, strong commitment to state emissions reduction

California can be credited with many air-quality-improvement firsts. Listed among these is a waiver granted by the fed that allowed the state to establish its own more stringent light-duty vehicle tailpipe-emissions standards, that is, apart from those prescribed for the rest of the U.S. In an Oct. 19, 2020 news release, meanwhile, the California Environmental … Read more

And, by the way, what does climate have to do with it all, anyway?!

I can’t tell you how many times I’ve heard the word “sustainability” come up in conversation lately. The word seems to be all the rage. That straightforward construct here undoubtedly needs no elaboration, no explanation. Not so with climate, another buzzword, catch-phrase of this modern era we’re living in. While the number of times I … Read more

‘Scorecard’ highlights building, transportation energy efficiency progress in 100 large U.S. cities in 2020

It is no secret that all across the world in the past couple of decades the area of clean energy has experienced leaps-and-bounds growth. One organization, the American Council for an Energy-Efficient Economy (ACEEE), annually compiles what it calls a “City Clean Energy Scorecard.” The ACEEE in “Scorecard: Leading U.S. Cities Grow Clean Energy Efforts … Read more

A critical look at surface-air-temperature change: Influencing ground-level ozone or not is the question

Ozone (O3) is a colorless but not odorless gas. When ignited, ozone gives off a chlorine-bleach-like odor. So, obviously, based on this, there is a point at which ozone ignites, and it is when this ignition point is reached that the chlorine-bleachish smell from the ozone is produced and released. It is in this sense … Read more

Report findings: States committed to meeting 2030 climate goals ‘off track’

The below Dec. 8, 2020 press release is from the Environmental Defense Fund. A new report from Environmental Defense Fund using emissions data from Rhodium Group finds that U.S. states with climate commitments are not on track to bring their emissions down consistent with science-based trajectories for 2030. According to the Intergovernmental Panel on Climate … Read more

Montgomery County, MD releases action-plan-draft for meeting climate goals

The below Dec. 14, 2020 press release is from Montgomery County (Maryland) Government. Montgomery County Executive Marc Elrich has released the Draft Climate Action Plan for public review. The Climate Action Plan is the County’s strategic plan to cut greenhouse gas (GHG) emissions by 80 percent by 2027 and by 100 percent by 2035. [Note: … Read more