Photos by Marshall Morris. This gets us back to the mystery. In this March 29, 1937 photo, the desolation of the Dust Bowl is graphically illustrated by these rippling dunes banked against a fence, farm home, barn and windmill in Guymon, Oklahoma. During a normal growing year in the southern U.S. plains, the bulk of the moisture falls in the summer, during the growing season. According to University of Arizona professor Jonathan Overpeck, there are two possibilities: either a “warm megadrought” or a “searing megadrought.”, A searing megadrought basically turns the country into a Mad Max prequel. As a result, Cowan warns, "Dwindling water availability in regions of low groundwater recharge may mean that cooler summer conditions may switch to warmer temperatures in decades to come under the influence of rising greenhouse gas emissions.". But in the northern grasslands, precipitation patterns are more even throughout the year. This is not just a matter of historical curiosity. The simulations showed that as a result of rapidly increasing heat-trapping greenhouse gases, the 1-in-100-year 1936 heat wave is, at the very least, now more of a 1-in-40-year event for the Great Plains — meaning a heat wave of that magnitude is now more than twice as likely and could occur twice in the average person's lifetime. During the 1960s, researchers found that there was a distinct ecological difference between these two types of what were thought of as warmer- and cooler-climate grasses (one group, known as "C4" use photosynthesis to produce a compound with four carbon atoms, compared to the other, known as "C3," whose first photosynthesis compound is composed of just three carbon atoms). City: Tulsa Date: 2/22/2020 - 2/23/2020 State: OK Men Schedule Women Schedule This event is not accepting registration anymore. And, in fact, it didn't seem all that strange—until scientists started learning more about these types of plants. Neither your address nor the recipient's address will be used for any other purpose. Don’t miss out on the fun — the Dust Bowl features great basketball games, plus music, exhibitors, vendors, and concessions. Farmers would have to give up on thirsty crops such as corn and wheat and grow more drought-friendly crops like nuts instead. And, noted Knapp, "they are a vital part of the local economies wherever they occur." ", First published on May 21, 2020 / 8:19 AM. The researchers also found that the encroachment of C3 plants has a sort of self-fueling power. The content is provided for information purposes only. The team included researchers from the CSU Department of Biology (Anping Chen, Robert Griffin-Nolan, Charles Carroll, Jesse Gray, Ava Hoffman, Alison Post, Ingrid Slette, and Melinda Smith) as well as those from the Department of Biology at the University of New Mexico, Albuquerque, and the Key Laboratory for Geographical Process Analysis and Simulation of Hubei Provence and the College of Urban and Environmental Sciences at Central China Normal University in Wuhan, China. We couldn't see our hand in front of our face. This document is subject to copyright. Learn how your comment data is processed. But given the rise in greenhouse gases over many decades, CBS News asked Cowan why we haven't already seen a return of Dust Bowl-like conditions in the Great Plains. Stupid ads.

Citation: New research provides solution for the 'Dust Bowl paradox' (2020, September 1) retrieved 27 September 2020 from https://phys.org/news/2020-09-solution-bowl-paradox.html And, noted Knapp, "they are a vital part of the local economies wherever they occur." Mitigation refers to reducing the source of greenhouse gases, which are produced overwhelmingly by the burning of fossil fuels.

You can be assured our editors closely monitor every feedback sent and will take appropriate actions. WHY DID YOU PICK OUT THIS FEAR MONGERING IDIOT TO QUOTE? No one would click on any one of them. ", Gemma E. Collins et al. It is estimated that three to four inches of topsoil was blown away during the 1930s. "This has a local cooling effect. © 2020 usaultimate.org All Rights Reserved. When the Dust Bowl hit, day turned into night as biblical dust storms buried parts of roads and buildings, especially in parts of Kansas, Oklahoma and Texas. are not responsible for the accuracy of news releases posted to EurekAlert! That time period was actually drier than the 30’s. Save my name, email, and website in this browser for the next time I comment. For example, C3 grasses tend to green up an average of a full month before C4 grasses but die back sooner, shifting the region's soil-air carbon exchange. DO YOU ACTUALLY CONSIDER THIS NEWSWORTHY? In a new paper, published this week in Proceedings of the National Academy of Sciences, they describe a four-year artificial drought experiment carried out in Kansas and Wyoming grasslands that offers a solution to the mystery of the Dust Bowl paradox. Your ads are bloody ridiculous and insulting. Thus was born the "Dust Bowl paradox.". We reproduced this surprising response by experimentally imposing extreme drought in two native grasslands.
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Click here to sign in with Day(s): Hour(s): Minute(s): Second(s) Come watch the Dust Bowl. "This scenario is more likely than ever, and should urge us to develop and implement more ambitious adaptation and mitigation plans.". Ugly etc. Well outputs in the central and southern parts of the aquifer are declining due to excessive pumping, and prolonged droughts have parched the area, bringing back Dust Bowl-style storms. At the time, of course, this shift in plant cover was not the top concern during a disaster that displaced some 2.5 million people and caused at least $1.9 billion in agricultural losses alone. The drought came in three waves, 1934, 1936, and 1939–1940, but some regions of the high plains experienced drought conditions for as many as eight years. During a normal growing year in the southern U.S. plains, the bulk of the moisture falls in the summer, during the growing season. UltiPhotos Official Tournament photography of the 2020 Dust Bowl, held 2/22-2/23 in Tulsa, OK. IMAGE: Experimental drought shelter near Hays, Kansas The C4 grasses grow best in warm temperatures and are more efficient at using water. In the western Great Plains the majority of groundwater comes from one of the world's largest aquifers -- the Ogallala Aquifer, which runs from Nebraska to Texas.
This property was abandoned by its owner when destructive dust clouds forced him to seek his fortune elsewhere. Apart from any fair dealing for the purpose of private study or research, no Naw, can’t happen. Jeff Berardelli is CBS News Meteorologist and Climate Specialist. EurekAlert! And, in fact, it didn't seem all that strange - until scientists started learning more about these types of plants. By the fourth year of such an event, US wheat exports would fall by half, and the country would exhaust 94 percent of its reserves, they calculated. Grasses more common in the cooler north began taking over the unusually hot and dry southern plains states that were usually occupied by other native grasses. The information you enter will appear in your e-mail message and is not retained by Phys.org in any form. This means that the shift from C4 to C3 growth patterns could result in hotter summers.". At the time, of course, this shift in plant cover was not the top concern during a disaster that displaced some 2.5 million people and caused at least $1.9 billion in agricultural losses alone. Thus was born the "Dust Bowl paradox.". The Dust Bowl has been a mainstay in Owensboro for nearly half a century, but the court at Kendall-Perkins Park will remain empty rather than be filled with players and fans of all ages during the third week of July.


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