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Study finds global emissions of several banned ozone-destroying CFCs are increasing

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The research, published in Nature Geoscience and led by the University of Bristol and National Oceanic and Atmospheric Administration (NOAA), puts the rise in part down to the chemicals, known as chlorofluorocarbons or CFCs, being used to make other ozone-friendly alternatives to CFCs.

Ozone 353
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Study: 2/3 of aviation climate impact due to emissions other than CO2

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of the human-made climate impact; two-thirds of this impact are caused by emissions other than CO 2 , according to a new study by researchers in Europe and the US. The study was published in the journal Atmospheric Environment. This new study is based on a thorough review of a decade of research on aviation emissions.

Climate 448
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Study: annual climate impact of wild pigs could be greater than 1.1M cars

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million cars, according to a new study by an international team led by researchers from The University of Queensland and The University of Canterbury. Their study appears in Global Change Biology. Using existing models on wild pig numbers and locations, the team simulated 10,000 maps of potential global wild pig density.

Climate 435
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NCAR-led study finds COVID-19 lockdowns temporarily raised global temperatures due to reductions in aerosols

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Temperatures over parts of Earth’s land surface last spring were about 0.2-0.5 degrees Celsius) warmer than would have been expected with prevailing weather conditions, the study found. In contrast, aerosols—the focus of the new study—have a more immediate impact that fades away within a few years.

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Study: Fossil fuel CO2 emissions reached max daily decline of 17% in April

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A preliminary analysis of global data has found that carbon dioxide emissions from fossil fuel sources reached a maximum daily decline of 17% in April as a result of drastic decline in energy demand that have occurred during the COVID-19 pandemic. Percentage change in global daily fossil CO 2 emissions, Jan-May 2020. Jones, M.W.

Emissions 355
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Study links increased black carbon pollution to increase in cases of lung adenocarcinoma worldwide

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Lung adenocarcinoma—an aggressive non-small cell lung cancer (NSCLC)—is a type of cancer for which research strongly suggests that genetic, environmental, and lifestyle factors play a part. The results of the study were published in the journal Atmospheric Environment. Globally, a 0.1 ?g/m

Pollution 305
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Study finds methane emissions from coal mines ~50% higher than previously thought

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The results have important implications for Earth’s climate because methane is about 25 times more powerful than carbon dioxide when it comes to warming the planet over a long period. In addition to coal mining, other major sources of methane emissions globally include wetlands, agriculture, and oil and gas facilities.

Coal 321