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Ozone-destroying CFC chemicals are on the rise again despite ban

New Scientist

The production of CFCs was banned globally in 2010, but researchers have detected rising levels of five CFC chemicals from unknown sources

Ozone 111
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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.

Ozone 40
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‘This shouldn’t be happening’: levels of banned CFCs rising

Environmental News Bits

The Montreal Protocol, which banned most uses of ozone-destroying chemicals known as chlorofluorocarbons (CFCs) and called for their global phase-out by 2010, has been a great success story: Earth’s ozone layer is projected to recover by the 2060s. Read the full story in Nature.

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Progress Possible at COP 28 Despite Fossil Fuel Industry Deception

Union of Concerned Scientists

Between 2010 and 2018, Chevron is analyzed to have dedicated only 0.2% Fossil fuel emissions, such as particulate matter and ozone, contribute to respiratory and cardiovascular illnesses, as well as deaths. Greenwashing is incredibly problematic because it works to slow and prevent climate action.

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The CO2 problem in six easy steps (2022 Update)

Real Climate

For some parts of the spectrum, the IR can be either absorbed by CO 2 or by water vapour or by clouds, but taking those overlaps into account we find that 50% of the greenhouse effect is from water vapour, 25% from clouds, and about 20% from CO 2 and the rest absorbed by ozone, aerosols, and other trace gases ( Schmidt et al, 2010 ).

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Viewpoint: Forty-three years of the environmental movement?

A Greener Life

Instead, environmentalists were mainly concerned about the ozone layer, nuclear meltdown and chemical industrial pollution, the erosion of biodiversity and population explosion. This has since changed many times.

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EPA’s Cross-State Air Pollution Rule Will Have A Dramatic Impact on Texas and Louisiana

The Energy Law Blog

Emissions reductions will take effect quickly, starting January 1, 2012 for SO2 and annual NOx reductions, and May 1, 2012 for ozone season (May-September) NOx reductions. Texas power plants must meet the January 1, 2012 deadline for SO2 and annual NOx emissions, and the May 1 deadline for ozone season NOx emissions. Tribune, Sept.