Federal court judge reinstates methane-waste rule; BLM rule-rescission-attempt fails

The below Jul. 16, 2020 press release is from the Center for Biological Diversity. A federal judge late yesterday reinstated the Bureau of Land Management’s 2016 methane waste rule, aimed at protecting people and the climate from methane waste and pollution from oil and gas extraction on public lands. The ruling is the third defeat … Read more

1940s-’80s global-mean-surface-temp normalization: Were Earth-covering sulfate aerosol clouds the cause?

Between roughly 1850 and the present day, the trend in global mean surface temperature (GMST) has, generally speaking, been positive, meaning the GMST has been rising. Interestingly, though, from 1940 to 1980 GMST stabilized. (See temperature plot at bottom). Incidentally, as reported by NASA’s Earth Observatory the GMST has increased a total of 0.7 degrees … Read more

Ready to roll: Hybrid renewable natural gas line-haul loco cuts fuel use in half, emissions by 99.5 percent

The below Jul. 22, 2020 press release is from OptiFuel Systems OptiFuel Systems (“OptiFuel”), a system integrator of Cummins and BAE Systems hybrid power products for decarbonizing the rail, marine, and microgrid power market, is in the process of finalizing a $2.6 million U.S. Department of Energy (DOE) grant to demonstrate a pre-production Renewable Natural … Read more

Clean Valley air road long and circuitous, important achievements made, much work ahead still

The Fresno Bee on Dec. 16, 2007 introduced its groundbreaking Special Report Fighting For Air. This source was referenced here before. Its mention is important from the standpoint that at that time air quality in California’s Central Valley was a big deal. And just how big a deal was it? Between 2004 and 2007, according … Read more

July 4th fireworks in Central Fresno push fine PM levels off the scale

So a check of the fine particulate matter in Central Fresno on the evening of Jul. 4, 2020 indicates microscopic specks of soot, chemicals and liquid droplets in air measured 150 micrograms per cubic meter (ug/m3) at 10 p.m. corresponding to a ROAR (Real-time Outdoor Activity Risk) Level 5 reading – meaning Very Unhealthy air. … Read more

Dedicated high-speed rail dollars kept in the Valley will simply go farther

This June 16th marks five years since construction on California’s statewide high-speed rail program first began. There are now 4,000 laborers doing bullet-train-related building work in the Golden State’s Central Valley at over three dozen sites. That level of commitment notwithstanding, there are those who think that they know what’s best regarding where yet-unspent dedicated … Read more

Once the pandemic ends what will be the ozone picture in the San Joaquin Valley?

There is just no way to know what way the air-quality pendulum will swing for California’s San Joaquin Valley (or simply, “the Valley”) post-COVID-19, well, not at this juncture, anyway. But, by looking at air-quality trends of the past this could provide a clue. So, two points of reference: 2005, prior to the onset of … Read more

What will it be surface-transport profile-wise, once the pandemic ends? – 2

So, let’s explore this idea some more. Part 1 can be read here. Speaking of which, in the earlier installment it was duly pointed out that sold in the U.S. each year are approximately 17 million new cars with at least 850,000 of those, or five percent, being of the zero-emissions-vehicle variety. Post-pandemic, will that … Read more

On air quality matters: In looking ahead, will clear skies prevail?

It’s been amazing! Around-the-world reports have been pouring in about how clean air in many parts of the world has become. Countrywide lockdowns and stay-at-home/shelter-in-place orders instituted during the COVID-19 outbreak have led to tremendous reductions in not just driving, but public transit use, shipping (on navigable waters) and flying. All of them combined having … Read more