<h2>A Climate Change Exhibit Asks ‘What If We Get It Right?’</h2>Dr. Ayanna Elizabeth Johnson, a marine biologist and co-founder of the nonprofit Urban Ocean Lab, thinks a lot about the possible futures of our climate. Not just one ideal climate future, but a range of futures that could be better if we make some changes.She’s helped steer environmental policy, written books and articles on climate action, and co-hosted the podcast How To Save A Planet. And now she’s working with artists who are offering their own <a href="https://www.sciencefriday.com/segments/climate-futurism-exhibit/?utm_source=wnyc&utm_medium=podcast&utm_campaign=scifri" target="_blank">creative visions for how we could build a more sustainable society.</a>The effort has culminated in Climate Futurism, a new exhibit Dr. Johnson curated at Pioneer Works, a museum and performing arts space in Brooklyn, New York. And one of the central questions it asks the viewer is, what if we get it right?SciFri producer D. Peterschmidt visited the exhibit and spoke to Dr. Johnson and one of the three featured artists, Erica Deeman, about food justice, reconnecting with nature, and why <a href="https://www.sciencefriday.com/segments/climate-futurism-exhibit/?utm_source=wnyc&utm_medium=podcast&utm_campaign=scifri" target="_blank">the exhibit is called Climate Futurism</a>.Climate Futurism features new art from Erica Deeman, Denice Frohman, and Olalekan Jeyifous. It runs until December 10, 2023.<h2>How To Save Oregon’s Salmon? Maybe With A Giant Vacuum.</h2>To free salmon stuck behind dams in Oregon’s Willamette River Valley, here’s what the U.S. Army Corps of Engineers has in mind:<a href="https://www.sciencefriday.com/segments/saving-oregon-salmon-giant-vacuum/?utm_source=wnyc&utm_medium=podcast&utm_campaign=scifri" target="_blank">Build a floating vacuum</a> the size of a football field with enough pumps to suck up a small river. Capture tiny young salmon in the vacuum’s mouth and flush them into massive storage tanks. Then load the fish onto trucks, drive them downstream and dump them back into the water. An enormous fish collector like this costs up to $450 million, and nothing of its scale has ever been tested.The fish collectors are the biggest element of the <a href="https://www.sciencefriday.com/segments/saving-oregon-salmon-giant-vacuum/?utm_source=wnyc&utm_medium=podcast&utm_campaign=scifri" target="_blank">Army Corps’ $1.9 billion plan</a> to keep the salmon from going extinct.The Corps says its devices will work. A cheaper alternative — halting dam operations so fish can pass — would create widespread harm to hydroelectric customers, boaters and farmers, the agency contends.“Bottom line, we think what we have proposed will support sustainable, healthy fish populations over time,” Liza Wells, the deputy engineer for the Corps’ Portland district, said in a statement.But reporting by Oregon Public Broadcasting and ProPublica casts doubt on the Corps’ assertions.<a href="https://www.sciencefriday.com/segments/saving-oregon-salmon-giant-vacuum/?utm_source=wnyc&utm_medium=podcast&utm_campaign=scifri" target="_blank">Read more on sciencefriday.com</a>.To stay updated on all things science, sign up for Science Friday's <a href="https://www.sciencefriday.com/newsletters/?utm_source=wnyc&utm_medium=podcast&utm_campaign=scifri" target="_blank">newsletters</a>. Transcripts for each segment will be available the week after the show airs on <a href="https://www.sciencefriday.com/episodes/november-3-2023/?utm_source=wnyc&utm_medium=podcast&utm_campaign=scifri" target="_blank">sciencefriday.com</a>.

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