For Stratospheric Aerosol Injection, All Strategies are Not Created Equal
For Stratospheric Aerosol Injection, All Strategies are Not Created Equal Read More >
NOAA scientists investigating the stratosphere have found that in addition to meteoric ‘space dust,’ the atmosphere more than seven miles above the surface is peppered with particles containing a variety of metals from satellites and spent rocket boosters vaporized by the intense heat of re-entry.
While the shade offered by clouds on a hot sunny day can be obvious, quantifying the actual climate impact in terms of solar energy remains a challenging task. This is because the volume, thickness, and lifetime of marine clouds can change rapidly, and the processes that govern how and where clouds form and how gases and aerosols in the air interact with cloud droplets are highly complex. In a marine environment, many of those gases and aerosols in the air come from the ocean itself.
NOAA researchers fly out over the Pacific to investigate cloud-forming marine sulfur Read More >
The summer of 2021 was a smoky one for Denver and northeastern Colorado. Smoky haze from wildfires in Arizona, California, and the Pacific Northwest shrouded
Smoked out: Were wildfires responsible for Denver’s record ozone season of 2021? Read More >
HORUS uncrewed glider system completes sampling mission to 90,000 feet The quest by Global Monitoring Laboratory scientists to develop a reliable, cost-effective way to study
Revolutionary NOAA high-altitude research tool passes key milestone Read More >
Carbon dioxide levels measured at NOAA’s Mauna Loa Atmospheric Baseline Observatory peaked at 424 parts per million in May, continuing a steady climb further into
Broken record: Atmospheric carbon dioxide levels jump again Read More >
The Annual Greenhouse Gas Index is a measure of the climate-warming influence of long-lived trace greenhouse gases in the atmosphere and how that influence has changed since the onset of the industrial revolution.
NOAA index tracks how greenhouse gas pollution amplified global warming in 2022 Read More >
Levels of carbon dioxide (CO2), methane and nitrous oxide, the three greenhouse gases emitted by human activity that are the most significant contributors to climate change, continued their historically high rates of growth in the atmosphere during 2022, according to NOAA scientists.
Greenhouse gases continued to increase rapidly in 2022 Read More >
A new research paper from NOAA’s Air Resources Laboratory published in the Bulletin of the American Meteorological Society finds that dust storms – previously assumed to be rather rare and isolated to particular regions – are contributing to a larger number of U.S. traffic fatalities than are recorded. This research also proposes modifications to the current reporting classifications to more accurately capture dust storm impact.
How deadly are dust storms? Read More >
Much of the success of the Montreal Protocol, the international treaty guiding recovery of the ozone layer, hinged on an agreement by the world’s nations