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By Bob Berwyn The latest anomaly in the climate system that cant be fully explained by researchers is a record annual jump in the global mean concentration of carbon dioxide in the atmosphere measured in 2024.
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 more on E360 →
In that year, El Nio added to the increased warming caused by the build-up of heat-trapping emissions in the atmosphere, leading to that record-breaking heat. Humans have a direct effect on albedo through emitting industrial aerosols such as sulfates, which accumulate in the atmosphere due to the burning of fossil fuels.
The rains were the result of a weather phenomenon known as an “atmospheric river,” a narrow column that transports water vapor from the tropics to the poles. Atmospheric rivers are projected to intensify as the climate continues to warm. Atmospheric rivers are not uncommon in the region.
New scientific information has yielded insights, including updates to our understanding of, and ability to model, the atmosphere, and the studies of the long-term effects of radiation on affected populations have yielded new information. New studies are being published and commissioned and research gaps are being identified.
Climate models are the main tool climate scientists use to predict how Earth will respond to more heat-trapping pollutants in the atmosphere. Just by looking at the name, you can see that a GCM is a model that simulates the circulation of Earths different physical systems like the atmosphere and ocean. What causes a circulation?
It shows the atmospheric concentrations of carbon dioxide (CO 2 ) and tells a story about the carbon cycle, involving Earth’s crust, the atmosphere, land surface, the biosphere, and the oceans. The Keeling curve, highlighted with the release of important climate reports and climate summits.
Climate models are the main tool scientists use to assess how much the Earths temperature will change given an increase in fossil fuel pollutants in the atmosphere. The atmosphere around us is an invisible fluid (at least to the human eye): we can apply math to that fluid to predict how it will look in the future.
On the coast of Newfoundland, waste from a shuttered asbestos mine has been a troubling source of contamination for decades. Now, a company plans to process the waste to draw CO2 from the air one of several projects worldwide that aim to turn this liability into an asset. Read more on E360
The potential collapse of the AMOC—which could happen within this century, or be triggered within this century and play out over a longer timeframe—comes as a result of climate change caused by additional heat-trapping emissions like carbon dioxide in the atmosphere. But what exactly would cause the AMOC to collapse? What is the AMOC?
Research with climate models in recent years shows that when carbon dioxide emissions stop, the rise in atmospheric temperatures will likely also stop. This means that there would be no additional warming of the atmosphere from carbon dioxide itself, but the many complex systems on Earth will continue to respond to the heat already trapped.
Swain and the other authors note that previous research has focused solely on the precipitation side of the equation rather than the full bloom-and-burn cycle driven not just by lack of rain but by an increasingly thirsty atmosphere evaporating moisture out of plants and soil.
Wildfires and fossil fuel burning in 2024 contributed to the biggest annual rise in atmospheric CO2 levels ever recorded at the Mauna Loa Observatory in Hawaii
Astronomers have spotted a 70-centimetre asteroid that is set to hit the atmosphere above northern Siberia at 4.15 pm GMT, making a fireball in the sky
Millions of tonnes of water vapour have been lingering in the atmosphere since the Hunga Tonga-Hunga Ha’apai volcano erupted in 2022– possibly contributing to global warming
Guest commentary by Robert Hart, Kerry Emanuel , & Lance Bosart The National Weather Service (NWS) and its parent agency, the National Oceanic and Atmospheric Administration (NOAA), delivers remarkable value to the taxpayers. This efficiency can be demonstrated by its enormous return on investment.
For the first time, the Arctic Report Card assessed that the Arctic is faltering as a reliable area for storing carbon away from the atmosphere ( Natalie et al., It was its first failing grade after thousands of years holding onto more carbon than released to the atmosphere. in Arc2024 ). Methane releases were sustained as well.
Biochar-amended soil can further sorb atmospheric CO2 for more carbon sequestration. This work is aimed … Continue reading Biochar-amended soil can further sorb atmospheric CO2 for more carbon sequestration Communications Earth & Environment, 6(1), 5.
was simply telling the story of the Keeling Curve.Thats a daily record of global atmospheric carbon dioxide concentration devised by Charles Keeling and taken from the Mauna Loa Observatory on Hawaii every day starting in 1958. My poor students thought I was in distress.I
This trend will continue as glacial melting, decreased rainfall, and a “thirstier” atmosphere jeopardize sources of freshwater in some parts of the globe. It finds more evidence that severe weather events are linked to carbon in the atmosphere and are becoming more extreme. Heavy rainfall will also become more common and more powerful.
Blacks are badly underrepresented in STEM fields such as atmospheric science and in environmental groups, but there are some important exceptions.(STEM Dr. Warren Washington is a long-time leader in atmospheric science at the National Center for Atmospheric Research (NCAR). I wanted to talk about some of those figures.
Scientists previously thought that solar geoengineering—or releasing particles into the atmosphere to reflect solar rays—would require specialized high-altitude vehicles
Achieving climate goals requires significant investments in clean energy, transportation, and other climate technologies to reduce greenhouse gas emissions and remove carbon from the atmosphere.
grocery products, has devastated tropical ecosystems, released vast amounts of C02 into the atmosphere, and impoverished rural communities. The cultivation of palm oil, found in roughly half of U.S. But efforts are underway that could curb the abuses of this powerful industry. Read more on E360 ?.
We also know what is needed to stop global warming: the atmospheric concentrations of greenhouse gases such as CO2 and methane must stabilise, and the forests must be protected. Landgren, "CMIP6 models project a shrinking precipitation area", npj Climate and Atmospheric Science , vol. References A. Dobler, R.E. Benestad, C.
Seagrasses, mangrove forests, and coastal wetlands store vast amounts of carbon, and their preservation and restoration hold great potential to bank CO2 and keep it out of the atmosphere. But can the blue carbon market avoid the pitfalls that have plagued land-based programs? Read more on E360 ?.
Beyond diminished agricultural productivity and more carbon in the atmosphere, it is a catastrophic loss of an irreplaceable resource. A new study points to a stunning loss of topsoil in the Corn Belt — the result of farming practices that have depleted this once-fertile ground. Read more on E360 ?.
since the 1850-1900 baseline is very clearly associated with the increases in greenhouse gases, slightly (and decreasingly) modulated by the changes in atmospheric pollution. Dessler, "Evolution of the Climate Forcing During the Two Years After the Hunga TongaHunga Ha'apai Eruption", Journal of Geophysical Research: Atmospheres , vol.
Both hurricanes were exacerbated by warmer ocean surface temperatures, and are examples of “what hurricanes will look more like in the future,” according to Dr. Marc Alessi, an atmospheric scientist with the Union of Concerned Scientists. We need to stop burning fossil fuels immediately.
Four RCP scenarios describe different levels of radiative forcing in the atmosphere by 2100. Radiative forcing is the change in energy balance in the Earths atmosphere due to heat trapping emissions. Studies show that high-emission scenarios like SSP5-8.5
It’s hard to pin individual storms on climate change, but the science is clear that atmospheric warming leads to more events like last weekend’s rainfall. This may be a trivial sum for small temperature changes, but with climate projections forecasting a few degrees of atmospheric warming, it starts to add up.
UCS Climate and Energy program policy director Rachel Cleetus breaks down the National Oceanic and Atmospheric Administration's latest report on costly, dangerous climate-related disasters in 2021.
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.
Recent studies reveal that tiny pieces of plastic are constantly lofted into the atmosphere. These particles can travel thousands of miles and affect the formation of clouds, which means they have the potential to impact temperature, rainfall, and even climate change. Read more on E360 →
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.
The CERES estimates of the top-of-atmosphere radiative fluxes are available from 2001 to the present. that you remember that post, but the simple model has an albedo and an atmospheric absorption that together control the surface temperature. The simplest model for the greenhouse effect. Two layers, albedo, and one LW absorber.
So SSU me Like MSU trends, these records reflected a weighted average of atmospheric temperatures, and the three SSU channels progressively weight higher levels in the stratosphere, roughly centered on 30km, 40km and 45km above the surface but with quite a bit of overlap. References B.D. Po-Chedley, L. Solomon, D.W.J. Thompson, C. Casas, G.A.
The fact that there is a natural greenhouse effect (that the atmosphere restricts the passage of infra-red (IR) radiation from the Earth’s surface to space) is easily deducible from; i) the mean temperature of the surface (around 15ºC) and, ii) knowing that the planet is normally close to radiative equilibrium. in IPCC TAR).
Thawing permafrost may release methane into the atmosphere, which subsequently increases the greenhouse effect and leads to further global warming. Melting land ice contributes to a higher global sea level. The overall Arctic ice loss has contributed far more to global sea-level rise than any other region on Earth.
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.
Satellite comparisons The weighted atmospheric temperatures that are retrieved from the MSU/SSU, and now AMSU , instruments are not standard CMIP diagnostics (though they should be!). The CMIP3 ensemble continues to astound! CMIP3 model ensemble compared to surface temperature observations (in ºF), showing two decades of skillful projection.
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