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Materials and nanotechnology: highlights of 2021

Physics World

Here is a selection of some of our favourite materials and nanotechnology research in 2021. We are seeing a growing number new materials made by processing wood, and another one that caught our eye in 2021 was the use of a fungus to make wood much more piezoelectric – and therefore capable of generating useful amounts of electricity.

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Delivery Vans are Going Electric: Where and Why

Union of Concerned Scientists

Medium- and heavy-duty vehicles (MHDVs), like the big rigs on our highways and the vans that deliver our packages, make up just over 1 in 10 of the vehicles on our roads, but are responsible for over half of ozone-forming nitrogen oxide pollution and lung-damaging fine particulate pollution from on-road vehicles.

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Summer Air Pollution Trends: Factors Affecting Air Quality

Breezometer

California's summer of 2021 has seen record-breaking wildfire outbreaks, surpassing 2020 by over 500 fire events by mid-July. Over the period of 2020 and 2021, California has also experienced its two largest wildfires ever , the Dixie and August Complex fires. Levels of Ground-level Ozone Pollution Can Increase in Summer.

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Why is future sea level rise still so uncertain?

Real Climate

The CPDW is thought to be affected by the shift in the westerly winds around Antarctica which have increased in recent decades due to a combination of greenhouse gas forcing and the polar ozone hole ( Miller et al, 2006 ). Antarctic contributions to sea Level scenarios from DeConto et al (2021). eabf7787, 2021. Recent advances.

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Air Regulators Tackle Trucking at Southern California Warehouses

Clean Energy Law

At a contentious board hearing on May 7, 2021, the South Coast Air Quality Management District (SCAQMD) approved a first-in-the-nation rule to regulate trucking emissions from warehouses by a 9-4 vote. These state and federal standards require areas to reach certain ambient concentrations of ozone to be considered in “attainment.”

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Deciphering the ‘SPM AR6 WG1’ code

Real Climate

In my opinion the press conference on 9 August 2021 didn’t do justice to the vast effort that went into it. In addition, ozone depletion higher up in the stratosphere has caused a cooling high up in the atmosphere. C since the industrial revolution, however, other types of pollution have had a moderating effect on that warming.

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Improving EPA’s Latest Ozone Transport Rule

Acoel

The agency’s air quality modeling indicates that most areas would receive an ozone reduction of less than 0.1 These air quality impacts are minimal compared with the major ozone reductions resulting from the 1998 SIP Call, which resulted in more than 80,000 megawatts of coal capacity being retrofitted with SCRs. ppb by 2025.

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