Atmospheric Sciences
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May 21 | News
According
to a recent computational study, pollution is warming the atmosphere by
intensifying summer thunderstorm clouds. The effect, say researchers,
outweigh any cooling factors provided by clouds, and global climate
models don't see this effect because thunderstorm clouds simulated in
those models do not include enough detail.
May 18 | News
While many are focusing on atmospheric solutions to reduce greenhouse gases, some researchers are setting their sights on the ground—deep underground. Li Li, an assistant professor of energy and mineral engineering at Penn State University, is investigating geologic carbon sequestration as a way to reduce the amount of carbon dioxide in the atmosphere.
May 15 | News
A
former U.K. government advisor and chemical engineer recently published
an article that discussed how dispersing sub-micrometer
light-scattering particles into the upper atmosphere could help to
combat climate change. Author Peter Davidson says the effect would
replicate the cooling that occurred after the 1991 eruption of Mount
Pinatubo.
May 8 | News
One popular climate record that shows a slower atmospheric warming trend than other studies contains a data calibration problem, and when the problem is corrected the results fall in line with other records and climate models, according to a new University of Washington study.
May 3 | News
Existing
historical climate records are typically biased to the high latitudes,
where polar ice and ocean sediments lock in the atmosphere’s past. Yet a
main driver of climate variability today is El Niño, which is a
completely tropical phenomenon. Scientists at the California Institute
of Technology believe they have found the ice core of the tropics,
however.
May 3 | News
To
help predict the rate at which plants respond to changing climate
conditions, researchers use experiments that manipulate the temperature
surrounding small plots of plants to gauge how specific plants will
react to higher temperatures. But wild plants are leafing out and
flowering sooner each year than predicted by results from these
experiments, according to data from a major new archive of historical
observations.
May 2 | News
While
past field projects have focused on thunderstorm details with only some
chemistry information, or on chemistry with limited data on storms, the
Deep Convective Clouds & Chemistry (DC3) Experiment, which begins
later this month, will be the first to take a comprehensive look at both
chemistry and thunderstorm details, including air movement, cloud
physics, and electrical activity.
Apr 27 | News
A clear change in salinity has been detected in the world's oceans, signaling shifts and acceleration in the global rainfall and evaporation cycle tied directly to climate change, according to a recently published paper.
Apr 25 | News
Titan’s
atmosphere has bee likened to a highly productive "factory", cranking
out hydrocarbons that rain down on Titan's icy surface, cloaking it in
soot and, with a brutally cold surface. With the help of data collected
by the Cassini spacecraft, NASA-funded scientists have attempted to
determine how long this complex chemical environment has been operating.
Apr 24 | News
A
group of high-tech tycoons wants to mine nearby asteroids wants to use
commercially built robotic ships to squeeze rocket fuel and valuable
minerals like platinum and gold out of the lifeless rocks that routinely
whiz by Earth. The inaugural step, to be achieved in the next 18 to 24
months, would be launching the first in a series of private telescopes
that would search for rich asteroid targets.
