The bad news: Dust from the Sahara Desert in Africa -- totaling a staggering 2 to 9 trillion pounds worldwide -- has been almost a biblical plague on Texas and much of the Southern United States in recent weeks. The good news: the same dust appears to be a severe storm killer.
Two NASA satellites observed Tropical Storm Ampil in six and a half hours and found the storm's heaviest rainfall occurring in a band of thunderstorms shifted from north to south of the center. NASA's GPM satellite passed over the storm first and NASA's Aqua satellite made the second pass.
Chemicals released into the environment by human activity are resulting in biodiversity loss; increased natural hazards; threats to food, water and energy security; negative impacts on human health and degradation of environmental quality. Now, an international study published in Environmental Toxicology and Chemistry involving scientists from the University of York has identified the 22 most important research questions that need to be answered to fill the most pressing knowledge gaps over the next decade.
When NASA's Aqua satellite passed over the Northwestern Pacific Ocean on July 19, the large Tropical Storm Ampil appeared much more organized than it did the previous day.
Tropical Cyclone Son-Tinh made landfall in Vietnam and left a trail of heavy rainfall in its wake. NASA's Global Precipitation Measurement mission or GPM core satellite provided an estimate of that soggy trail through the Gulf of Tonkin.
Researchers from North Carolina State University have described rapid and dramatic clearing of low cloud cover off the southwest coast of Africa. This newly observed phenomenon could help climatologists understand how clouds affect Earth's heating and cooling.
Although clouds grow and dissipate all of the time, scientists think that low-lying clouds off the coast of subtropical Africa are being disrupted not simply by wind from the continent, but rather by a wave mechanism. For climate models, the way the clouds are being disrupted could make a big difference.
Adding to evidence attributing observed atmospheric changes to manmade influences, climate scientists leveraging satellite data from recent decades have identified a human 'fingerprint' on Earth's atmosphere in a new place: the troposphere, or, the lowest region of the atmosphere.
Cities can serve as useful proxies to study and predict the effects of climate change, according to a North Carolina State University research review that tracks urbanization's effects on plant and insect species.
Researchers at Chapman University have learned from studying 2012's Hurricane Sandy, that we are more likely to see larger, more powerful hurricanes in the future.