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DLR: cleaner aircraft emissions reduce the climate impact of contrail cirrus

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Fewer soot particles in the exhaust stream of aircraft reduces the formation of ice crystals and therefore the climate impact of the resulting contrail cirrus. The results are published in an open-access paper in the Nature Partner Journal (npj) Climate and Atmospheric Science. The results are expected in summer 2019.

Climate 278
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Global Carbon Budget 2022: Global fossil CO2 emissions expected to grow 1.0% in 2022

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The Global Carbon Project (GCP) published its annual analysis of trends in the global carbon cycle in the journal Earth System Science Data , including an updated full-year projection for 2022. Global fossil CO 2 emissions are expected to grow 1.0% (with an uncertainty range of 0.1% The decline in 2020 of -5.2% increase in 2021.

Global 221
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MIT team finds aviation emissions’ impacts on air quality larger than on climate

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Researchers at MIT have determined that growth in aviation causes twice as much damage to air quality as to the climate. Aviation emissions are an increasingly significant contributor to anthropogenic climate change. Aviation emissions are an increasingly significant contributor to anthropogenic climate change.

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Biden sets 2030 net GHG reduction target for US of 50-52% below 2005 levels

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According to the most recent GHG inventory from the US Environmental Protection Agency (EPA), US GHG emissions in 2019 (after accounting for sequestration from the land sector) were 13% below 2005 levels. In 2019, US greenhouse gas emissions totaled 6,558 million metric tons of carbon dioxide equivalents (MMT CO 2 Eq.),

2005 243
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EPA proposes ban on all consumer, most industrial and commercial uses of methylene chloride

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Methylene chloride, also known as dichloromethane and DCM, is a volatile chemical used in a wide range of industrial, commercial, and consumer applications such as adhesives, sealants, degreasers, cleaners, and automobile products. Still, use of methylene chloride has remained widespread, even after EPA banned one consumer use in 2019.

EPA 218
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New study shows a rapid increase of diesel-fueled backup generators across California

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Emissions from these backup generators can harm local residents, regional air quality and the global climate. We have long been concerned about the proliferation of diesel backup generators here in the Bay Area, as highlighted in this report. —Jack Broadbent, executive officer of the Bay Area Air Quality Management District.

Diesel 480
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TNGA-based 2019 Toyota Avalon features new hybrid system

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Underpinned by the Toyota New Global Architecture (TNGA) K Sedan platform, the 2019 Avalon is powered by two new TNGA powertrains: a punchy 3.5-liter 2019 Avalon Hybrid. The use of Atkinson cycle, too, reduces the V6’s fuel appetite, particularly in cold climates or during wide-open throttle (WOT) situations.

2019 207