Physics World

JUNE 17, 2022

Levels of helium-4 in the Earth’s atmosphere have been increasing since at least 1974, according to a study by researchers at the University of California, San Diego, US that resolves a longstanding anomaly in atmospheric science. When the gas is extracted and burned, the helium is released into the atmosphere.

Atmosphere 98

Atmosphere Fossil Fuels Natural Gas Nuclear Power 98

Yale E360

NOVEMBER 28, 2022

When pandemic-related lockdowns grounded planes and brought car traffic to a near standstill in early 2020, transport emissions plummeted, leading to a drop in levels of a short-lived gas that scrubs methane from the atmosphere. The slump in traffic helped fuel a spike in methane, a new study finds. Read more on E360 ?.

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Atmosphere 2020 214

Real Climate

SEPTEMBER 19, 2021

In 2020, CO 2 was at ~410 parts per million, while CH 4 was around 1870 parts per <it>billion</it> (or 1.87 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. W/m 2 for CH 4.

Carbon Dioxide 363

Carbon Dioxide Radiation Atmosphere Greenhouse 363

Union of Concerned Scientists

MAY 27, 2022

Still, both the National Oceanic and Atmospheric Administration (NOAA) forecast , released on May 24, and the Colorado State University (CSU) forecast , released on April 7, predict a season with above-normal activity— for the seventh consecutive year. Can we expect more seasons like 2020 and 2021? Of course, we have questions!

2022 361

2022 2020 2021 Climate Change 361

Real Climate

JANUARY 28, 2024

Now, this is the exact same model data that Spencer is using (from McKitrick and Christy (2020) (though the screening uses the TCR from our paper), and updated TLT satellite data. Model trends: 0.29ºC (all models) [0.20,0.46] 95% spread, 0.27ºC/dec (screened) [0.20,0.34]. Casas, G.A. Schmidt, R.L. Tsigaridis, L.S. Nazarenko, S.E.

Atmosphere 363

Atmosphere Ozone 2022 2020 363

Real Climate

APRIL 2, 2021

By Jim Kossin, Tim Hall, Mike Mann, and Stefan Rahmstorf The 2020 Atlantic hurricane season broke a number of records , with the formation of an unprecedented 30 “named storms” (storms that reach wind-speed intensity of at least 18 m/s and are then given an official name). 2020 ), many others do not. 2021 ; Knutson et al.

2020 255

2020 2016 2008 Atmosphere 255

Real Climate

JANUARY 15, 2022

Zyss, "Improvements in the GISTEMP Uncertainty Model", Journal of Geophysical Research: Atmospheres , vol. There is a candidate for this, which is the impact of anomalous freshwater from Antarctica (see for instance, Rye et al., We should probably try and sort this out at some point… Ensembles of uncertainty. Zelinka, T.A. Myers, D.T.

Cooling 362

Cooling Ocean 2020 2019 362

Environmental News Bits

OCTOBER 27, 2021

The latest analysis of observations from the WMO GAW in situ observational network shows that globally averaged surface mole fractions(1) for CO2, methane (CH4) and nitrous oxide (N2O) reached new highs in 2020, with CO2 at 413.2 ± 0.2 ppm(2), CH4 at 1889 ± 2 ppb(3) and… Read more →

2020 81

2020 Atmosphere Greenhouse Climate Change 81

Legal Planet

SEPTEMBER 20, 2021

Here are the basics: The Pledge aims to achieve a collective goal of reducing global methane emissions by at least 30 percent below 2020 levels by 2030. California’s 2016 law, SB 1383 , requires a 40 percent reduction from 2013 levels, which is comparable to the 30 percent reduction from 2020 levels identified in the Global Methane Pledge.

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2030 2013 2020 2016 244

Real Climate

JUNE 25, 2022

This follows from the need to run for much longer simulation periods (centuries, as opposed to days) (a factor of ~5000 more computation), and to include more components of the climate system (the full ocean, atmospheric chemistry, aerosols, bio-geochemistry, ice sheets etc.) 3653-3680, 2020. 7591-7617, 2020. Van Roekel, .F.

Ocean 330

Ocean 2020 Climate Change 2022 330

Legal Planet

OCTOBER 23, 2023

California did this despite substantial growth over the decade from 2010 to 2020, adding about 2.4 That adds up to something in the ballpark of fifty million tons of CO2 that California kept out of the atmosphere during that decade beyond what happened in the power sector nationally. reduction is attributable to California).

2009 290

2009 2019 Atmosphere Biofuels 290

Environmental News Bits

JUNE 7, 2022

has been in the grip of an unrelenting drought since early 2020. Heading … Continue reading Grim 2022 drought outlook for Western US offers warnings for the future as climate change brings a hotter, thirstier atmosphere. by Imtiaz Rangwala, University of Colorado Boulder Much of the western U.S.

Atmosphere 97

Atmosphere Climate Change 2022 2020 97

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.

Sea Level 255

Sea Level Ocean 2020 2013 255

Real Climate

NOVEMBER 18, 2023

“It’s [the albedo is] kept the same” [False – for instance here is a paper (Loeb et al, 2020) comparing the changes in albedo in models to the CERES observations]. It is still the case that variations in cloud feedbacks are the dominant source of variability of climate sensitivity in models (Zelinka et al, 2020).

Radiation 71

Radiation 2003 2020 Climate Change 71

Circle of Blue

NOVEMBER 14, 2022

Instruments installed on the International Space Station are refining weather forecasts by measuring water vapor in the atmosphere and water held in clouds. Incorporating satellite data, the program estimates water that plants “breathe” into the atmosphere and water that evaporates from farm fields.

Ocean 351

Ocean Politics Atmosphere 2004 351

Union of Concerned Scientists

NOVEMBER 15, 2022

The pledge is a voluntary agreement to reduce global methane emissions by 30 percent below 2020 levels by 2030. Although methane doesn’t linger very long in the atmosphere, increasing methane levels are particularly bad news because it packs a big punch. But its short lifetime in the atmosphere is also a reason for hope.

Fossil Fuels 281

Fossil Fuels Paris Agreement 2030 Climate Change 281

Legal Planet

AUGUST 30, 2023

The threat of flooding and erosion is increasing throughout the United States as a warming atmosphere makes precipitation events more extreme and contributes to sea level rise. coastline is projected to see an average of 10 to 12 inches of sea level rise between 2020 and 2050, which is equal to the amount measured over the last 100 years.

Sea Level 293

Sea Level Climate Change Regulations Law 293

Real Climate

AUGUST 9, 2021

Now however, the updates to the historical warming , the use of four datasets instead of one, and of course, the series of record breaking years subsequently (2014, 2015, 2016/2020), the issue of variability in decadal trends is no longer so salient. Russell, "Climate Impact of Increasing Atmospheric Carbon Dioxide", Science , vol.

Sea Level 361

Sea Level 2012 Radiation Ocean 361

Real Climate

APRIL 28, 2022

The connection between higher resolution and better weather forecasts lies in the decrease in numerical diffusion, and better ability to track the large scale synoptic situation, including the fronts and atmospheric rivers etc. before the chaotic nature of the weather renders forecasts unreliable. Myers, D.T. Chedley, P.M. Caldwell, P.

Atmosphere 268

Atmosphere Climate Change 2020 2012 268

Union of Concerned Scientists

JUNE 20, 2024

The primary cause of accelerating sea level rise is human activity As people burn fossil fuels and emit heat-trapping gases like carbon dioxide, our atmosphere and our oceans warm up. On average, over the 1993-2020 period, sea level has risen more quickly along the coastline of the contiguous United States than it has globally.

Sea Level 342

Sea Level Fossil Fuels Ocean Carbon Dioxide 342

Union of Concerned Scientists

OCTOBER 6, 2022

Workers in facilities that produce and use EtO as well as people living near facilities that release it into the atmosphere are at risk of unsafe exposures even when the facilities are using the best available technologies to handle and contain it. Have I been exposed to ethylene oxide?

Clean Air Act 274

Clean Air Act 2019 Environmental Protection 2020 274

Physics World

MAY 15, 2022

The atmosphere of the planet Neptune has undergone significant and “frankly unexpected” changes to its atmospheric temperature over the past two decades, say scientists at the University of Leicester, UK. C between 2018 and 2020. This amounted to multiple spectra and over 95 images spanning 17 years (2003-2020).”.

2003 113

2003 Atmosphere 2018 2020 113

Circle of Blue

NOVEMBER 8, 2021

” A growing body of scientific research shows that even if society were to halt emissions overnight, a certain amount of atmospheric warming—and accompanying environmental risks— would still occur. The report noted wealthy nations’ unkept promise to deliver $100 billion in annual climate aid by 2020. And we need it now.”

Climate Change 245

Climate Change Paris Agreement Greenhouse Carbon Emissions 245

New Scientist

JUNE 8, 2023

Climate data from 1979 to 2020 shows that clear air turbulence is occurring more frequently – a predicted consequence of a warmer atmosphere

Climate Change 98

Climate Change Atmosphere 2020 98

Legal Planet

SEPTEMBER 22, 2023

It is precisely the impacts from these severely changed weather systems that the Held plaintiffs cited as reasons for their initial complaint filed in 2020. Unprecedented weather events have become the standard. The smoke-filled skies from near-constant summer wildfires forced Olivia, then 16 years old, to stay inside during the summer.

Climate Change 189

Climate Change Atmosphere Greenhouse Carbon Dioxide 189

Physics World

JUNE 3, 2021

NASA has announced it will send two missions to Venus to study the planet’s atmosphere and geological features. The Deep Atmosphere Venus Investigation of Noble gases, Chemistry, and Imaging Plus (DAVINCI+), meanwhile, will be a probe that will dive through Venus’ atmosphere to precisely measure its composition down to the surface.

Atmosphere 124

Atmosphere 2028 Ocean 2005 124

Real Climate

MAY 30, 2024

2024) Looked at the impact of Chinese aerosol emission decreases from 2010 to 2020 and saw increases in North Pacific ocean temperatures. Zhou, "Atmosphere teleconnections from abatement of China aerosol emissions exacerbate Northeast Pacific warm blob events", Proceedings of the National Academy of Sciences , vol. W/m 2 globally).

2023 211

2023 Radiation 2024 Ocean 211

Union of Concerned Scientists

NOVEMBER 20, 2023

The pledge is a voluntary agreement to reduce global methane emissions by 30 percent below 2020 levels by 2030; however, methane levels keep going up and we are woefully off track for meeting this goal. Compared to carbon dioxide (CO2), methane doesn’t linger for long in the atmosphere after being emitted.

Fossil Fuels 312

Fossil Fuels Paris Agreement Climate Change 2030 312

Real Climate

MARCH 4, 2021

About five years later, analysis of an extended simulation of yet another climate model–the coupled ocean-atmosphere model run by the Hadley Centre within the UK Meteorological Office, yielded evidence for a similar oscillation, albeit with a longer (roughly 100 year) period, and a more global signature (Knight et al., Ammann, and P.

Cooling 269

Cooling Ocean Radiation 2005 269

Union of Concerned Scientists

OCTOBER 4, 2023

Forests present one of the most cost-effective and scalable opportunities available today to sequester carbon because they naturally pull carbon dioxide out of the atmosphere and store it in their wood, leaves, and roots. As mentioned above, the carbon market, where forest landowners receive payments for sequestering carbon, is growing.

Carbon Dioxide 57

Carbon Dioxide 2005 2023 Atmosphere 57

Environmental News Bits

OCTOBER 18, 2024

A new analysis of satellite data finds that the record surge in atmospheric methane emissions from 2020 to 2022 was driven by increased inundation and water storage in wetlands, combined with a slight decrease in atmospheric hydroxide (OH). Read the full story from North Carolina State University.

Atmosphere 40

Atmosphere 2020 2022 40

Union of Concerned Scientists

SEPTEMBER 11, 2024

The dip in gasoline use in 2020 was due to the reduction in personal vehicle use during the initial phases of the coronavirus pandemic. Each gallon of gasoline used results in 19 pounds of carbon dioxide emissions to the atmosphere, and the extraction of oil, refining, and distribution of gasoline results in the equivalent of an additional 4.5

Carbon Dioxide 269

Carbon Dioxide 2005 Electricity Nitrogen Oxides 269

Physics World

MARCH 15, 2022

Sagnik Dey , Dilip Ganguly and colleagues at the Centre for Atmospheric Sciences at the Indian Institute of Technology–Delhi calculate that the successful implementation of India’s National Clean Air Programme would allow the country to generate an extra 6-16 TWh of solar electricity every year.

Air Pollution 127

Air Pollution 2001 Atmosphere 2018 127

Inside Climate News

JULY 17, 2023

By Lydia Larsen In 2020, an international rule went into effect that sharply reduced the amount of sulfur allowed in ship fuel. The aim was to rein in atmospheric sulfur oxide emissions, which are known to be a threat to public health and the environment.

Ocean 98

Ocean Air Pollution Atmosphere 2020 98

PA Environment Daily

JANUARY 10, 2022

On January 5, the Department of Environmental Protection reported their inspections found 4,386 violations of environmental regulations at conventional oil and gas operations during 2021 -- nearly two and a half times the violations reported just two years ago in 2019 and 337 more than in 2020. Read more here.] Read more here.] barrels or 0.41

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Waste 2017 2020 2019 134

Real Climate

SEPTEMBER 26, 2023

When it retreats, it opens up for more heat and moisture exchange between the ocean and the atmosphere, and the strongest warming can be found where the sea-ice has retreated (Isaksen, et al., 2020) and boundary layers (Bintanja et al., Yet, sea-ice acts as an insulator between air and sea.

Ocean 195

Ocean Climate Change 2023 Atmosphere 195

Circle of Blue

MARCH 20, 2023

As of 2020, about 2 billion people do not have safely managed drinking water. The atmosphere of swirling possibility is part of the appeal. There have been undoubted successes for water and sanitation. Billions more people today have access to safe drinking water than two decades ago. But the failures are just as glaring.

Sustainable Development 279

Sustainable Development 2030 Government Politics 279