Law and Environment

JANUARY 9, 2023

Today, the New York Times reported that a recent assessment shows that the world is on track to reach pre-1980 levels of upper atmosphere ozone by roughly 2040. Especially when it’s good news about effective international cooperation on environmental protection issues. .

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Ozone 2018 Atmosphere Environmental Protection 246

Real Climate

AUGUST 12, 2021

Another clue indicating a shortcoming is if you look at the atmospheric CO 2 -concentrations over time to see how much impact the IPCC reports have had on the real policy-makers in the world (Figure below). The cause of our changing climate is the increase in atmospheric greenhouse gas concentrations that we have released into the air.

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Atmosphere Greenhouse Ocean Sea Level 353

Union of Concerned Scientists

MAY 13, 2024

The American Lung Association’s State of the Air report measures three of the major types of pollutants in the San Joaquin Valley: long-term particle matter, short-term particle matter, and ozone. Ozone, too, poses significant risks to respiratory health. Ozone plays a dual role in our atmosphere.

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2024 Fossil Fuels Ozone Air Pollution 294

Real Climate

SEPTEMBER 19, 2021

But methane’s role in atmospheric chemistry and as a source of stratospheric water vapour means that it has a bigger effect on climate than just the direct effect of its concentration. Before we go any further though, we need to understand that the effective perturbation time for CO 2 and CH 4 in the atmosphere are very different.

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Carbon Dioxide Radiation Atmosphere Greenhouse 358

Real Climate

MARCH 16, 2023

This ensemble samples model structural variability (vertical resolution, model top, interactive composition) and some aspects of forcing uncertainty (notably for aerosols and ozone), as well as the initial-condition (‘weather’) variability we are used to seeing. As above, the GISS ensemble diverges slightly from the observations.

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2004 Atmosphere Ozone 2022 325

Real Climate

JANUARY 28, 2024

Readers may recall that we showed that a broader exploration of the structural variations in the models (including better representations of the stratosphere and ozone effects, not included in the McKtrick and Christy selection), can make a big difference to these metrics (Casas et al., Tsigaridis, L.S. Nazarenko, S.E. Bauer, and D.T.

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Atmosphere Ozone 2022 2020 362

Successful Green

MARCH 17, 2021

As atmospheric concentrations of CFC-11 drop, the global ocean should become a source of the chemical by the middle of next century, a new MIT study predicts. The world’s oceans are a vast repository... The post Oceans may start emitting ozone-depleting CFCs appeared first on successful GREEN.

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Ozone Ocean Atmosphere Climate Change 75

Inside Climate News

NOVEMBER 14, 2024

By Georgina Gustin At its annual conference on climate change this week, the United Nations released a major report saying the world has little hope of reaching global climate targets without quickly lowering emissions of nitrous oxide, a greenhouse gas that’s nearly 300 times more powerful at warming the atmosphere than carbon dioxide.

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Ozone Carbon Dioxide Atmosphere Greenhouse 114

Environmental News Bits

JUNE 21, 2023

A new study reaffirming that global climate change is human-made also found the upper atmosphere is cooling dramatically because of rising CO2 levels. Scientists are worried about the effect this cooling could have on orbiting satellites, the ozone layer, and Earth’s weather. Read the full story from e360.

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Cooling Atmosphere Ozone Climate Change 75

Environmental News Bits

JULY 30, 2024

When … Continue reading Defunct satellites burning up in the atmosphere could damage the ozone layer. The growing swarm is already causing problems for astronomers, but recent research has raised another question: what happens when they start to come down? Here’s how

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Ozone Atmosphere 52

Union of Concerned Scientists

JULY 9, 2024

Hydrofluorocarbons (HFCs) were developed to replace a type of chemical that impacted the ozone layer in our upper atmosphere, but these replacements are potent greenhouse gases. Phasedown of hydrofluorocarbons There are several rules that inform and facilitate the phasedown of hydrofluorocarbons.

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Toxic Substances Control Act Air Pollution Regulations Clean Air Act 312

Real Climate

APRIL 23, 2023

Readers will recall that the TLT product is nominally a weighted average of atmospheric temperature anomalies from the surface up to 5km or so. the AIRS retrievals work by assuming a (realistic) prior atmospheric profile (surface temperature, vertical profiles of temperature, humidity, cloud cover, aerosols, ozone etc.)

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Atmosphere Ocean 2001 Ozone 244

Legal Planet

SEPTEMBER 30, 2021

But it’s not totally clear what he meant, because “climate change” was used at the time to refer to a range of issues including acid rain, damage to the ozone layer, local weather control efforts, and desertification. In one sentence of a 1975 article, John Barton referred to “climate change” as a potentially severe long-term problem.

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Carbon Dioxide Climate Change Nuclear Power Clean Air Act 203

Environmental News Bits

JUNE 13, 2024

National Science Foundation National Center for Atmospheric Research. Powerful monsoon winds, strengthened by a warming climate, are lofting unexpectedly large quantities of ozone-depleting substances high into the atmosphere over East Asia, new research shows. The study, led by the U.S.

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Physics World

MAY 4, 2022

“If I look at the next 50 years, next hundred years maybe, nobody will be able to set up a telescope that’s powerful enough to resolve surface features,” says Jonathan Jiang , an atmospheric scientist at NASA’s Jet Propulsion Laboratory in Pasadena, California, who uses Earth as a laboratory to model exoplanets.

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Real Climate

MAY 12, 2021

Meanwhile, note that the factors listed above involve the whole Earth system: the oceans, the cryosphere, the atmosphere, the solid earth and lithosphere, and a full range of scales, from the city block and shoreline, to ice dynamics that change over kilometers, to GRD footprints, to the whole global ocean. 2020) or Sadai et al.

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Sea Level Ocean 2020 2013 254

Real Climate

NOVEMBER 18, 2023

Clauser however takes that number, removes 80 and 20 W/m 2 for atmospheric absorption by ozone (!!) Balmaseda, "Evaluating Twenty‐Year Trends in Earth's Energy Flows From Observations and Reanalyses", Journal of Geophysical Research: Atmospheres , vol. Senan, J.M. Lyman, G.C. Johnson, and M. Schmidt, T. Andrews, S.E. Bauer, P.J.

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Radiation 2003 2020 Climate Change 67

PA Environment Daily

OCTOBER 4, 2023

Environmental Protection Agency’s GreenChill Program recognized 12 food retail companies and one manufacturer of advanced refrigeration systems for their exceptional achievements to reduce the use of ozone-depleting substances and/or climate-damaging refrigerants.

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Ozone Carbon Dioxide Cooling Atmosphere 81

Greenbuilding Law

JUNE 5, 2022

Atmosphere The gaseous envelope surrounding the Earth. The dry atmosphere consists almost entirely of nitrogen (78.1% volume mixing ratio), together with a number of trace gases, such as argon (0.93% volume mixing ratio), helium, radiatively active greenhouse gases such as carbon dioxide (0.035% volume mixing ratio), and ozone.

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Greenhouse Carbon Dioxide Atmosphere Fossil Fuels 98

Breezometer

MARCH 23, 2022

Unlike some of the other major air pollutants that affect our health, such as ground-level ozone (O3), nitrogen dioxide (NO 2 ), sulfur dioxide (SO 2 ), and carbon monoxide (CO), particulate matter is the only example that isn’t a gas. But what exactly is PM pollution and how does it affect us? What is Particulate Matter: Let’s Define It.

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Air Pollution Ground-Level Ozone Nitrogen Oxides Carbon Monoxide 133

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. Climate change promises to raise all of these costs.

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2014 2022 Climate Change Politics 359

HumanNature

JANUARY 30, 2025

Candidate in the Department of Chemistry at Colorado State University Earths atmosphere is one of our greatest shared resources and provides many ingredients required for life. We breathe oxygen from the atmosphere, weather systems distribute water, and the ozone in the upper atmosphere protects us from harmful radiation.

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Ozone Fossil Fuels Atmosphere Ground-Level Ozone 52

Physics World

OCTOBER 20, 2021

They do this by analysing the electromagnetic absorption spectra of an exoplanet’s atmosphere as it transits its sun, seeking the presence of gases such as oxygen, methane, water vapour and ozone (a proxy for oxygen). Analogous to technosignatures, these are the signs of life on alien worlds, intelligent or otherwise.

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Technology Technology Atmosphere 2014 144

HumanNature

DECEMBER 5, 2023

What was once a display of the peaceful time of day as the sun spills over the horizon is now synonymous with the atmospheric symptoms of wildfires. Photo credit Jienan Li, Colorado State University Do Orange Skies Spell Demise? The question “ why is the sky orange?

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Nitrogen Oxides Ozone Carbon Monoxide 2023 105

PA Environment Daily

APRIL 9, 2024

Equitrans provided emission estimates that indicated approximately 1.037 billion cubic feet of natural gas was released into the atmosphere, violating Pennsylvania’s Air Pollution Control Act. The impact of methane is over 25 times greater than carbon dioxide at trapping heat in the atmosphere.

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Natural Gas Carbon Dioxide Pollution Control Air Pollution 113

Physics World

DECEMBER 23, 2021

The JWST’s main exoplanet task will be to probe the atmospheres of the planets as they pass between the telescope and their parent stars. That’s a pretty clear benefit of being late,” he tells Physics World. Courtesy: NASA/R Hurt/T Pyle). But the telescope’s exoplanet studies will go deeper, too.

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Carbon Dioxide Atmosphere Ozone 96

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. In June 1979, atmospheric carbon stood at 339ppm, just below the 350ppm level scientists believe to be safe. Today that number is 420ppm and rising.

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Fossil Fuels Climate Change Paris Agreement Atmosphere 98

Breezometer

JULY 3, 2021

When a firework explodes, it releases a combination of fine particulate matter (which includes heavy metals, as well as poisonous gases) into the atmosphere. Studies have also shown that fireworks can create a ‘burst’ of ozone formation, also harmful to human health. This can cause a rapid impact on the surrounding air quality.

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Ozone 2019 2020 Atmosphere 98

Ocean Conservancy

SEPTEMBER 8, 2023

Recent science doesn’t support this optimism, as new studies show that the increased release of Black Carbon, one of the most potent climate change forcers—as well as soot, carbon dioxide, methane and ozone from more traffic in the Arctic—could lead to a 20% increase in the global heating that is causing warmer ocean temperatures.

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Ocean Sea Level Fossil Fuels Carbon Dioxide 99

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.

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Ozone 2010 Atmosphere Greenhouse 40

Environmental News Bits

JANUARY 5, 2024

Climate change is making asthma worse, as hotter temperatures increase ozone pollution and wildfires and make pollen season longer. But asthma, ironically, is also making climate change worse: Inhalers use chemicals that are as much as 3,600 times more powerful than CO2 at trapping heat in the atmosphere.

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Ozone Atmosphere Climate Change 40

Greenbuilding Law

JULY 9, 2023

Over a 20 year period, methane is estimated to be more than 80 times as potent as carbon dioxide in terms of trapping heat in the atmosphere. Quick Acting Impact : Unlike carbon dioxide, which can persist in the atmosphere for centuries or maybe millennia, methane has a relatively short atmospheric lifespan of approximately 12 years.

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Climate Change Carbon Dioxide Atmosphere Ozone 52

Law Columbia

MAY 24, 2024

The UNFCCC is applicable only to GHGs not controlled by the Montreal Protocol on Substances that Deplete the Ozone Layer and specific responsibilities for international aviation and maritime transport emissions are conferred on the International Civil Aviation Organization (‘ICAO’) and the International Maritime Organization (‘IMO’).

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Paris Agreement Law Climate Change Atmosphere 81

PA Environment Daily

JANUARY 21, 2022

Transportation generates 47 percent of nitrogen oxide emissions in Pennsylvania, contributing to the formation of ground-level ozone. The 2021 AFIG funded projects will put 87 cleaner fuel school buses, package delivery trucks, and other vehicles in use, and save an estimated 262,798 gasoline equivalents (GGE) from the atmosphere.

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Nitrogen Oxides Greenhouse Ground-Level Ozone Carbon Dioxide 52

Science Blogs

AUGUST 21, 2017

The data, available for free online, can help track air quality indicators, heavy metals in air, dust, and other atmospheric components which can affect human health. NASA satellites have been collecting data for years on nitrogen dioxide, ozone, particulate matter, and sulfur dioxide. Photo courtesy of NASA Image Library .

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Air Pollution Atmosphere 2017 Ozone 52

Acoel

SEPTEMBER 20, 2023

Or: “Write a history of EPA’s regulation of ozone.” Or: “What are the global impacts from the release of greenhouse gases into the atmosphere.” “Write a summary of the available technologies for controlling the emission of sulfur dioxides.”

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Ozone Atmosphere Regulations Greenhouse 40

A Greener Life

SEPTEMBER 20, 2023

The boundary for ozone depletion, for example, while not transgressed globally, was headed for increasing regional transgressions. The researchers add that for the first time, there’s now also scientific evidence that makes it possible to quantify the boundary of atmospheric aerosol loading.

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Climate Change Ozone Deforestation 2009 52