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.

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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

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

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Frontiers

FEBRUARY 8, 2022

Deforestation fires in Brazil and Indonesia accounted for 3% and 7%, respectively, of the planet’s total greenhouse gas emissions (GHG) in 2019 and 2020, finds a new study in Frontiers in Climate. In Brazil, a total of 11,088 km 2 of forest were destroyed from August 2019 to July 2020. gigatons CO2e in 2020.

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Greenhouse Deforestation 2019 Carbon Monoxide 110

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

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.

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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).

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Radiation 2003 2020 Climate Change 71

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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Real Climate

AUGUST 9, 2021

The radiative forcing bar chart has gone full circle: Almost every IPCC report has a version of the radiative bar chart showing the contributions over the historical period of all the different forcings (greenhouse gases, aerosols, solar, etc.). Russell, "Climate Impact of Increasing Atmospheric Carbon Dioxide", Science , vol.

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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.

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Climate Change Atmosphere Greenhouse Carbon Dioxide 189

Real Climate

MARCH 4, 2021

Since it was a control simulation with no external “forcing” (no greenhouse gas changes, no variations in solar output, no volcanic eruptions, etc.), any oscillation that was produced has to be internally generated. Consider a parallel analysis (Figure 1-right) of the CMIP5 historical simulations.

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Cooling Ocean Radiation 2005 269

Legal Planet

JUNE 4, 2021

its district, appellate , and supreme courts decided in favor of Urgenda, an upstart environmental organization, ordering the government to more aggressively reduce greenhouse gas emissions. Environmental Protection Agency (2007) forced the EPA to regulate greenhouse gas emissions. Everyone produces greenhouse gases.

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Greenbuilding Law

MAY 1, 2022

With the federal government and state of Maryland each having announced within days of each other, the mandated disclosure of greenhouse gas (GHG) emissions, we have received, maybe not surprising, many calls in the last two weeks inquiring “what are GHGs?” Simply put, gases that trap heat in the atmosphere (.

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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. However the long term drop in per person gasoline use is likely due to fuel economy and greenhouse gas standards that have made gasoline vehicles more efficient over the prior decades.

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A Greener Life

JANUARY 18, 2022

They found that the past seven years were the world’s warmest by a clear margin, with 2016 and 2020 the warmest on record. Atmospheric CO2 levels at record highs. Globally, the levels of CO2 and methane which are the main greenhouse gases continued to climb, and both hit record highs in 2021. ppm from 2020, the scientists said.

Atmosphere 97

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A Greener Life

SEPTEMBER 22, 2021

The UN body the World Meteorological Organization (WMO) explained that the economic downturn brought on by nationwide lockdowns only caused a temporary downturn in emissions and was not enough to reverse the rising levels of greenhouse gasses (GHG) in the atmosphere. Not going in the right direction.

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Paris Agreement Atmosphere Climate Change Fossil Fuels 98

Real Climate

AUGUST 12, 2021

Taking into account not only permafrost thaw, but also a host of other biogeochemical and atmospheric feedbacks, the AR6 estimates to appropriately include the effect of all these feedbacks, remaining carbon budgets have to be reduced by 26 ± 97 GtCO 2 per degree Celsius of additional warming. These values can be used in a variety of ways.

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HumanNature

FEBRUARY 20, 2023

Candidate in the Department of Atmospheric Science at Colorado State University Growing up in Latin America, food was at the center of many family gatherings. greenhouse gas emissions in the year 2020. As an atmospheric chemist, I want to better understand the emissions of agriculture to the atmosphere.

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Physics World

OCTOBER 12, 2021

According to a poll carried out in 2020 by the Institution of Mechanical Engineers (IMechE), only a quarter of people aged between 18 and 24 in the UK are aware that nuclear is a low-carbon source of energy. Tricky problem Nuclear energy is often not viewed as a low-carbon energy source. Courtesy: Shutterstock/andrea dantee).

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Nuclear Power Clean Energy Greenhouse Radiation 140

Union of Concerned Scientists

OCTOBER 27, 2022

The World Meteorological Organization Greenhouse Gas Bulletin. The WMO’s GHG bulletin’s headline takeaways are stark: Atmospheric concentrations of three major heat-trapping gases, carbon dioxide (CO 2 ), methane (CH 4 ) and nitrous oxide (N 2 O) hit all-time highs in 2021 (see table below).

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Physics World

OCTOBER 26, 2021

In 2020, the lab released its first public Environment Report that detailed the status of CERN’s environmental footprint. It found that greenhouse-gas emissions emitted by the lab in 2018 was 223 800 tonnes of carbon-dioxide equivalent. The CERN particle-physics lab near Geneva, for example, uses 1.3 Eager to learn.

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Climate Change Carbon Dioxide Radiation Renewable Energy 120

Enviromental Defense

SEPTEMBER 27, 2023

Just days before the conference she was featured in an article where she attempted to shift blame away from the fossil fuel industry by saying that oil companies can only decarbonize as fast as the rest of the economy – a comment that completely ignores the fact that the oil and gas industry is Canada’s largest source of greenhouse gas emissions.

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Physics World

OCTOBER 29, 2021

The promise from many nations is to reach net-zero greenhouse-gas emissions by 2050 (or earlier) and interim targets are essential. But the United Nations has just said that the latest commitments of the 192 parties of the 2015 Paris agreement will equate to a 16% rise in global greenhouse-gas emissions in 2030 compared to 2010.

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A Greener Life

FEBRUARY 8, 2024

The previous warmest January was recorded three years ago, January 2020, showing that extreme weather events and temperature records are being broken on a more and more frequent basis. 2023 was already the warmest year ever recorded, based on data since records began, dating back to 1850. above pre-industrial temperatures for the first time.”

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2024 Climate Change 2015 2023 101

Union of Concerned Scientists

FEBRUARY 15, 2024

Under the LCFS each fuel pathway gets a unique carbon intensity (CI) based on a lifecycle analysis of the greenhouse gas emissions associated with the production and use of the fuel. A 2020 report from the US Department of Agriculture on Consolidation in U.S. Unfortunately, this is far from the truth.

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Real Climate

SEPTEMBER 21, 2023

His ‘three runs’ were the ensemble means from three scenarios (the different SSPs from 2015 to 2020), which a) barely differ from each other in forcing because of the minor differences in GHG concentrations over a mere five years and, b) are the ensemble means (at least for the runs with multiple ensemble members)! Scaife, T.G.

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Physics World

MARCH 16, 2022

According to a 2020 study ( Glob. A 2021 study found that 7000 virtual delegates at three large scientific meetings, held online in 2020, had the same carbon footprint as a single in-person attendee to the same events in 2019 ( Nat. © 2020 Springer Nature Limited. 10.1038/s41893-021-00823-2 ). Reused with permission.

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A Greener Life

NOVEMBER 14, 2022

King calls for immediate testing and deployment of often-controversial carbon removal techniques to begin drawing down atmospheric greenhouse gases by tens of billions of tonnes per year.

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Climate Change Paris Agreement Carbon Dioxide Carbon Emissions 98

Frontiers

AUGUST 7, 2023

Writing as part of Frontiers’ guest editorials series, the study’s lead author – Prof Martin Siegert, deputy vice chancellor of the University of Exeter (Cornwall) – discusses how without there being a rapid shift to net-zero greenhouse gas emissions by 2050, the Antarctic environment will experience ever more drastic changes.

Ocean 98

Ocean Fossil Fuels Radiation Environmental Science 98

PA Environment Daily

SEPTEMBER 30, 2023

Conventional Gas Wells Venting/Leaking On September 25, 2023 , DEP inspected the Fogel 114 conventional gas well in Mead Township, Warren County operated by Bearcat Oil Co, LLC and found the recently drilled well was being vented to the atmosphere, as is the normal procedure for new wells. Erosion and sedimentation controls were in place.

Natural Gas 120

Natural Gas 2023 Atmosphere Greenhouse 120

Manning Law

JUNE 8, 2020

In celebration of Environment Day 2020 on June 5, we publish here in full the speech given by Inger Andersen, Under-Secretary-General of the United Nations and Executive Director of the UN Environment Programme. CO 2 levels in the atmosphere hit an all-time high in early May. “World Environment Day is a day of celebration.

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A Greener Life

APRIL 4, 2024

By Anders Lorenzen The emissions from methane , a powerful greenhouse gas (GHG) with 80 times the warming potential of carbon dioxide (CO2) rose in 2023 despite several pledges and initiatives to reduce emissions. Graph credit: IEA.

2023 57

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HumanNature

OCTOBER 8, 2021

In recent history, we have witnessed LUC exacerbating climate change due to disturbed soils, development of greenhouse gas (GHG) producing land uses, and more 4. Colorado Greenhouse Gas Pollution Reduction Roadmap. Glob Change Biol 26 , 219–241 (2020). IPCC guidelines for national greenhouse gas inventories 4 , 1–59 (2006).

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Climate Change Carbon Emissions Greenhouse 2019 98

HumanNature

APRIL 10, 2023

Student in the Department of Atmospheric Science at Colorado State University Most people remember the water cycle they learned in school: water evaporates from lakes, rivers, and the ocean, air carrying this moisture rises, cools, condenses, and forms clouds, and these clouds precipitate water back down to the surface.

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A Greener Life

SEPTEMBER 9, 2022

Since 2020, Neste has picked up used cooking oil from 252 of the fast-food restaurants and refines it into fuel. Saville, who has also been assessing sustainable-fuel life-cycle emissions for the United Nations’ International Civil Aviation Organization, says that oils can reduce greenhouse gas emissions by 80 to 90% compared to fossil fuels.

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Carbon Dioxide Fossil Fuels Waste Carbon Emissions 98

PA Environment Daily

MARCH 17, 2022

By Patrick Monahan, PittWire In February 2020, the University of Pittsburgh announced its goal to go carbon neutral by 2037 -- 13 years sooner than the Intergovernmental Panel on Climate Change’s call for global carbon neutrality.

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Clean Energy Fossil Fuels 2008 Solar Power 57

PA Environment Daily

AUGUST 11, 2021

Greg Vitali Methane is a powerful greenhouse gas and Pennsylvania’s oil and gas industry is a major methane emitter. In May of 2020, an EDF analysis found that Pennsylvania’s oil and gas operators emit more than 1.1 It’s time to finalize these regulations. Methane reduction is critical in addressing climate change. Read more here.

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Regulations Natural Gas Climate Change 2016 57