What would you do with an extra $5,443 a year? Converting all home appliances and cars to run on electricity could eliminate a third of Australia’s greenhouse gas emissions while saving households $40bn a year by 2028, according to a new report. The report, Castles and Cars, by the new energy thinktank Rewiring Australia, found the average Australian household uses 102kWh of energy a day at a cost of $5,248 a year. Much of this cost comes from relying on petrol and gas to power cars, stoves, showers and heaters. - Guardian

The use of fossil fuels comes with a wide variety of externalized costs. The big focus tends to be on the carbon dioxide fossil fuel produces and its role in warming the climate. But fossil fuels also cause environmental damage when they're extracted, and burning them produces particulate pollution and ozone. Those substances have downstream effects on human health and agriculture. If all of these costs were included in the price of fossil fuels, then alternatives would be far more competitive.

There have been numerous attempts over the years to quantify these externalized costs. Some look at the issue from a purely economic perspective, and others look at efforts to inform policy. These efforts tend to be based on our best understanding at the time; however, as our knowledge improves, the figures can be worth revisiting. That's exactly what's been done by a team of researchers at Columbia and Duke Universities who use current climate scenarios and updated health data.

The researchers' results say that, even if you ignore the climate benefits, moving away from fossil fuels rapidly would lead to benefits that, in the US alone, can add up to trillions of dollars before the century is over. - ArsTechnica / CarbonBrief

On occasion, GeoNews will feature an op-ed from a reliable, scientific source.  This editorial is by Dr. Michael Mann, distinguished professor of atmospheric science and director of the Earth System Science Center at Penn State University.  He also is the author of many books and hundreds of peer-reviewed scientific papers. - LA Times

New York took an aggressive stance toward fossil fuels this week, effectively killing the development of new fossil fuel power plants in the state. The Department of Environmental Conservation denied permits for two proposed natural gas power plants, saying they were incompatible with the state’s climate law, which calls for an end to fossil fuel-generated electricity by 2040.  Though the proposed plants would be more efficient than those currently in operation, the state agency said the plants would generate “significant” amounts of pollution and that their construction now, less than 20 years from the targeted net-zero emissions date, would be “inconsistent” with what is required by the climate law. - ArsTechnica

During continuing hearings on Wednesday, the Arizona Corporation Commission voted not to permit Arizona Public Service (APS) to recover the full $450 million investment in its upgrades for the Four Corners coal plant, as the utility plans to close the plant earlier. APS would be able to recover $234.5 million from ratepayers. Following the threat of legal action from APS, the chair of ACC withdrew her proposal to cut rates $0.09/kWh from the current $0.1172/kWh.  The commission plans to vote on Nov. 2 on the final rate package. - Utility Drive

A fridge, toilet seats, and more than 63,000 pounds of trash. That's what a cleanup team recovered in a monthslong effort to chip away at the so-called Great Pacific Garbage Patch, a massive collection of marine debris plaguing the Pacific Ocean.  A half-mile long trash-trapping system named "Jenny" was sen  out in late July to collect waste, pulling out many items that came from humans like toothbrushes, VHS tapes, golf balls, shoes and fishing gear. Jenny made nine trash extractions over the 12-week cleanup phase, with one extraction netting nearly 20,000 pounds of debris by itself. The mountain of recovered waste arrived in British Columbia, Canada, this month, with much of it set to be recycled. - USA Today

The melting of polar ice is not only shifting the levels of our oceans, it is changing the planet Earth itself. Newly minted Ph.D. Sophie Coulson and her colleagues explained in a recent paper in Geophysical Research Letters that as glacial ice from Greenland, Antarctica and the Arctic Islands melts, Earth's crust beneath these land masses warps, an impact that can be measured hundreds and perhaps thousands of miles away. "Scientists have done a lot of work directly beneath ice sheets and glaciers," said Coulson, who did her work in the Department of Earth and Planetary Sciences and received her doctorate in May from the Graduate School of Arts and Sciences. "So they knew that it would define the region where the glaciers are, but they hadn't realized that it was global in scale." By analyzing satellite data on melt from 2003 to 2018 and studying changes in Earth's crust, Coulson and her colleagues were able to measure the shifting of the crust horizontally. Their research, which was highlighted in Nature, found that in some places the crust was moving more horizontally than it was lifting. In addition to the surprising extent of its reach, the Nature brief pointed out, this research provides a potentially new way to monitor modern ice mass changes. - Phys.Org

The United States has a PFAS problem. Whether they are raining down from the sky or popping up in food packaging, the mysterious chemicals, also known as Per- and polyfluoroalkyl substances have been finding their way into our bodies and environment—sometimes at concerningly high levels. PFAS are also found in everyday cosmetics, especially in longwear and waterproof makeup items and can  accidentally be ingested overtime. PFAS can even be found in our drinking water.  PFAS are not only dangerous because they build up in the environment and in our bodies, but the chemicals are often associated with low infant birth rates and even cancer according to the EPA. In the past year, some research has connected high rates of PFAS exposure to worse COVID outcomes. Despite being such harmful toxins to people, they’re used regularly and are not historically regulated in the U.S.  To tackle this dilemma, the Environmental Protection Agency (EPA) announced a “Comprehensive National Strategy” to regulate the toxic industrial chemical. The plan describes three main strategies going forward–investing in more research on PFAS, leveraging authorities that can take action to restrict more PFAS chemicals from being released, and accelerating PFAS contamination cleanups. EPA administrator Michael S. Regan pointed out that the agency will work on holding polluters accountable in the announcement. - Popular Science

Berkeley, California-based carbon transformation company Twelve and Tulsa-based Emerging Fuels Technology (EFT) today announced that they have produced the first fossil-free jet fuel from carbon dioxide using an electrochemical process. The project received funding from the US Air Force. The new biofuel, which is called E-Jet, can be used by both commercial and military aviation. Biofuels are notoriously expensive. But where many processes have proven the ability to yield 65% of jet fuel from initial feedstock, EFT says its process yields more than 80%. EFT has also signed a licensing agreement with Norwegian company Nordic Electrofuel, which also makes fossil-replacement fuels. Twelve and EFT state that fossil-free jet fuel E-Jet is a drop-in replacement for petrochemical-based alternatives, and no changes are required to existing plane design or commercial regulations.   - Electrek