Ozone-destroying CFC chemicals are on the rise again despite ban
New Scientist
APRIL 3, 2023
The production of CFCs was banned globally in 2010, but researchers have detected rising levels of five CFC chemicals from unknown sources
New Scientist
APRIL 3, 2023
The production of CFCs was banned globally in 2010, but researchers have detected rising levels of five CFC chemicals from unknown sources
Real Climate
JULY 10, 2022
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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Acoel
JUNE 29, 2022
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.
Circle of Blue
SEPTEMBER 20, 2022
After the 2014 shutdown Toledo spent $53 million to install an ozone treatment system at the city’s drinking water plant to safeguard customers from algal toxins, said Andrew McClure, the plant’s administrator. Then there is the ongoing cost of putting that equipment to work.
Environmental News Bits
APRIL 4, 2023
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.
A Greener Life
JUNE 24, 2022
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.
The Energy Law
SEPTEMBER 15, 2011
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.
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