Air pollution helps wildfires create their own lightning
May. 25, 2021 , 12:30 PM
Most people know lightning can spark wildfires. But wildfires can also spark lightning a phenomenon that has puzzled scientists for decades. Now, researchers have revealed a key cause of this phenomenon: air pollution. Dirtier air means more lightning above wildfires and more rain, too.
The finding “demonstrates that we should be thinking about the impact air pollution has on weather systems, including the impact on storms,” says Joel Thornton, an atmospheric scientist at the University of Washington, Seattle, who was not involved in the research.
Many factors are believed to cause lightning during a wildfire. Scientists have blamed everything from air currents to urbanization. These elements have been hard to disentangle in the air above land because the rough topography, changing land use, and varying heat create a complex set of variables that are hard to tease out.
We believe that these dinosaurs were very communicative. They even produced and perceived low-frequency sounds like those made by elephants, which travel several kilometers and are imperceptible to humans, says palaeobiologist Angel Alejandro Ramirez.
“We know that they had ears with the ability to receive low-frequency sounds, so they must have been peaceful but talkative dinosaurs. Some paleontologists theorize that they emitted loud sounds to scare off carnivores or for reproduction purposes, which suggests that the crests wore bright colors,” said Ramirez.
The skull of the new dinosaur in Mexico and its distinctive Tlatolophus crest bone. (Juan Miguel Contreras, technical photographer, Institute of Geology /
Speakers, Panels Announced For Explorers Club s 2021 Global Exploration Summit
Amanda Gorman s Earthrise , Fabien Cousteau, and Bertrand Piccard anchor second global summit
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2021 Global Exploration Summit (GLEX) s slate of programming will include the world s leading visionaries, explorers and scientists. The second annual summit - made possible with support of Turismo de Portugal and sponsored by VisitAzores - will feature more than 20 panels that will dive into recent advancements in land, sea and space exploration.
Taking place in Portugal and remotely this July, the GLEX Summit s notable confirmed guests include:
Earthrise;
David Blaine, American illusionist, endurance artist, and extreme performer;
ECLAC Economic Commission for Latin America and : Alicia Bárcena Calls for Overcoming the Structural Constraints of Gender Inequality and Building Care Societies for a More Egalitarian, Sustainable and Resilient Future marketscreener.com - get the latest breaking news, showbiz & celebrity photos, sport news & rumours, viral videos and top stories from marketscreener.com Daily Mail and Mail on Sunday newspapers.