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Latest Stratospheric sulfur aerosols Stories

Eyes In The Sky
2012-07-11 13:12:17

UI researchers develop technique to help pollution forecasters see past clouds Until now, scientists who study air pollution using satellite imagery have been limited by weather. Clouds, in particular, provide much less information than a sunny day. University of Iowa scientists have created a technique to help satellites "see" through the clouds and better estimate the concentration of pollutants, such as soot. The finding is important, because, like GPS systems, clouds block...

Small Volcanoes Also Affect Climate
2012-07-06 10:13:36

Lawrence LeBlond for redOrbit.com - Your Universe Online An international team of researchers have found that even small volcanic eruptions can lead to a cooler climate if they coincide with weather systems such as monsoons, which boost aerosols produced by eruptions high into the atmosphere affecting global temperatures. The research, led by scientists from the University of Saskatchewan in Canada, suggests that the previously held belief that only massively energetic eruptions could...

2012-01-26 02:16:21

As the reality and the impact of climate warming have become clearer in the last decade, researchers have looked for possible engineering solutions — such as removing carbon dioxide from the atmosphere or directing the sun's heat away from Earth — to help offset rising temperatures. New University of Washington research demonstrates that one suggested method, injecting sulfate particles into the stratosphere, would likely achieve only part of the desired effect, and could carry...

2012-01-23 11:21:10

Carbon dioxide emissions from the burning of coal, oil, and gas have been increasing over the past decades, causing the Earth to get hotter and hotter. There are concerns that a continuation of these trends could have catastrophic effects, including crop failures in the heat-stressed tropics. This has led some to explore drastic ideas for combating global warming, including the idea of trying to counteract it by reflecting sunlight away from the Earth. However, it has been suggested that...

2012-01-03 11:34:32

Increases in air pollution and other particulate matter in the atmosphere can strongly affect cloud development in ways that reduce precipitation in cool and relatively dry regions, such as Israel in winter, but also can increase rain and the intensity of severe storms in warm and moist regions or seasons, such as the eastern half of the US during summer, says a new study by researchers from the Hebrew University of Jerusalem and the University of Maryland.  The research provides...

2011-12-20 18:26:44

Many of the particles in the atmosphere are produced by the natural world, and it is possible that plants have in recent decades reduced the effects of the greenhouse gases to which human activity has given rise. One consequence of this is that the climate may be more sensitive to emissions caused by human activity than we have previously believed. Scientists at the University of Gothenburg (Sweden) have collected new data that may lead to better climate models. "Emissions by plants to the...

2011-12-14 19:09:40

A Yale study examining the impact of aviation on climate change found that removing sulfur from jet fuel cools the atmosphere. The study was published in the October 22 issue of Geophysical Research Letters. "Aviation is really important to the global economy. We better understand what it's doing to climate because it's the fastest growing fossil fuel-burning sector and there is no alternative to air travel in many circumstances. Emissions are projected to increase substantially in the...

science-082511-006
2011-08-25 11:37:37

  Our understanding of how clouds form may need to be revised, according to new research published in the journal Nature. The study has found that one or more unidentified organic gases have a significant influence on the Earth's cloud cover. The research has implications for certain predictions about climate change because aerosol particles and the clouds they seed have a cooling effect on the Earth by reflecting radiation from the sun. Jasper Kirkby, head of the Cosmics...

94988839
2011-08-22 13:18:28

Supercomputer simulations by University of Washington researchers outline the potential risks and benefits of geoengineering Scientists believe that our warming world may face catastrophic changes to its natural environment, including droughts, rising oceans and fiercer, more frequent hurricanes. Theoretically, it may be necessary to act globally to mitigate the damage. Initially, those efforts will probably take the form of limits on greenhouse gas emissions or forest preservation. But...

2011-04-14 15:28:30

Scientists have known for decades that black carbon aerosols add to global warming. These airborne particles made of sooty carbon are believed to be among the largest man-made contributors to global warming because they absorb solar radiation and heat the atmosphere. New research from Carnegie's Long Cao and Ken Caldeira, along with colleagues George Ban-Weiss and Govindasamy Bala, quantifies how black carbon's impact on climate depends on its altitude in the atmosphere. Their work, published...


Word of the Day
glogg
  • Scandinavian punch made of claret and aquavit with spices and raisins and orange peel and sugar.
This word comes from the Swedish 'glogg,' which is an alteration of 'glodgat,' mulled (wine).
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