An international team of researchers will begin gathering in the Indian Ocean next month to study an atmospheric pattern that affects weather worldwide. The six-month field campaign, supported in part by NCAR, will help improve long-range weather forecasts and computer models of climate change.
The planet’s deep oceans at times may absorb enough heat to flatten the rate of global warming for periods of as long as a decade even in the midst of longer-term warming, according to a new analysis led by the National Center for Atmospheric Research (NCAR).
Although the burning of natural gas emits far less carbon dioxide than coal, a new study by an NCAR researcher concludes that a greater reliance on natural gas would fail to significantly slow down climate change. Coal releases more carbon dioxide, but it also releases particles that cool the planet.
A three-year series of research flights from the Arctic to the Antarctic has produced an unprecedented portrait of greenhouse gases. The HIPPO project, led by NCAR, Harvard, and NOAA, is enabling researchers to generate the first detailed mapping of the global distribution of gases and particles that affect Earth’s climate.
Scientists this month are wrapping up a three-year series of missions from the Arctic to the Antarctic aboard an advanced research aircraft, having successfully made the most extensive airborne measurements of carbon dioxide and other greenhouse gases and particles to date. Mission scientists will discuss preliminary findings and describe the mission in detail.
Although Arctic sea ice appears fated to melt as the climate continues to warm, the ice may temporarily stabilize or somewhat expand at times over the next few decades, new research indicates.
A new study sheds light on why the Sun’s outer atmosphere, or corona, is more than 20 times hotter than its surface. The research, led by the National Center for Atmospheric Research (NCAR), may bring scientists a step closer to understanding the solar cycle and the Sun’s impacts on Earth.
Researchers have found that areas near commercial airports sometimes experience a small but measurable increase in rain and snow when aircraft take off and land under certain atmospheric conditions.
The economic impacts of routine weather events can add up to 3.4% of the nation's GDP.
New research focusing on the Houston area suggests that widespread urban development alters wind patterns in a way that can make it easier for pollutants to build up during warm summer weather instead of being blown out to sea.
Aircraft safety is getting a boost from a new computer-generated forecast that provides pilots with critical weather information on the likelihood of encountering dangerous in-flight icing conditions.
Cities worldwide are failing to take necessary steps to protect residents from the likely impacts of climate change, even though billions of urban dwellers are vulnerable to heat waves, sea level rise, and other changes associated with warming temperatures.
Wolverine habitat in the northwestern United States is likely to warm dramatically if society continues to emit large amounts of greenhouse gases, according to new computer model simulations carried out at NCAR. The study found that climate change is likely to imperil the wolverine in two ways: reducing or eliminating the springtime snow cover that wolverines rely on to protect and shelter newborn kits, and increasing August temperatures well beyond what the species may be able to tolerate.
The magnitude of climate change during Earth’s deep past suggests that future temperatures may eventually rise far more than projected if society continues its pace of emitting greenhouse gases, a new analysis concludes. Building on recent research, the study examines the relationship between global temperatures and high levels of carbon dioxide in the atmosphere tens of millions of years ago.
One of the most enduring mysteries in solar physics is why the Sun’s outer atmosphere, or corona, is millions of degrees hotter than its surface. Now scientists believe they have discovered a major source of hot gas that replenishes the corona: narrow jets of plasma, known as spicules, shooting up from just above the Sun’s surface. The finding addresses a fundamental question in astrophysics: how energy moves from the Sun’s interior.
A new study finds that microscopic particles of dust, emitted into the atmosphere when dirt breaks apart, follow similar fragment patterns as broken glass and other brittle objects. The research suggests there are several times more dust particles in the atmosphere than previously believed, since shattered dirt appears to produce an unexpectedly high number of large dust fragments. The finding has implications for understanding future climate change because dust plays a significant role in controlling the amount of solar energy in the atmosphere.
The United States and many other heavily populated countries face a growing threat of severe and prolonged drought. The analysis concludes that warming temperatures associated with climate change will likely create increasingly dry conditions across much of the globe in the next 30 years, possibly reaching a scale in some regions by the end of the century that has rarely, if ever, been observed in modern times.
Changes in population growth and composition, including aging and urbanization, could significantly affect global emissions of carbon dioxide over the next 40 years, according to a new study in PNAS out next week.
New research shows the extent to which such sustained winds can dramatically lower water levels. The research suggests that such a "wind setdown" event could have led to a parting of waters similar to the description in the biblical account of the Red Sea.
In a bid to unlock longstanding mysteries of the Sun, including the impacts on Earth of its 11-year cycle, an international team of scientists has successfully probed a distant star. By monitoring the star's sound waves, the team has observed a magnetic cycle analogous to the Sun's solar cycle.
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