所有功能
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![A For Sale sign outside a barn on a US farm](/sites/default/files/styles/thumbnail/public/2021-04/farm-for-sale.jpg?itok=J2EVCjcC)
Bigger Farms, Bigger Problems
Farmland consolidation is harming US rural communities—and better policies can help.
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![Severe erosion in Montgomery County, Iowa](/sites/default/files/styles/thumbnail/public/2020-12/severe-erosion-iowa.jpg?itok=uPmK58wD)
How Soil Erosion Threatens 食品和农场
Almost a century after the Dust Bowl, the unsolved problem of soil erosion clouds the future of US agriculture.
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![2020617888九五至尊娱乐卫士](/sites/default/files/styles/thumbnail/public/2020-12/All%20Science%20Defenders_0.png?itok=QQOtM-rZ)
2020年UCS617888九五至尊娱乐卫士
2020年UCS617888九五至尊娱乐卫士
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![Map showing readiness for November 2020 election by state](/sites/default/files/styles/thumbnail/public/2020-07/voting-reform-map-for-thumb.jpg?itok=2PJhjpIU)
投票和COVID-19
COVID-19 has amplified the US electoral system's many problems. Will state governments do what's needed to ensure a free and fair 2020 election?
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![Person in yellow and white face mask.](/sites/default/files/styles/thumbnail/public/2020-05/1500-900-sao-paulo-mask.jpg?itok=w3lwSplQ)
COVID-19617888九五至尊娱乐危害
617888九五至尊娱乐 hazards across the world will inevitably collide with the COVID-19 pandemic in ways that will disrupt emergency responses to both.
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![A map showing flooding and COVID risk](/sites/default/files/styles/thumbnail/public/2020-04/total-infections-flooding-20pct-reduced-contact_0.jpg?itok=0SicTQ-g)
Maps of Flooding Risk and COVID-19
A before/after slider that compares two scenarios: 20% versus 40% reduction in contact.
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![缩略图的折线图](/sites/default/files/styles/thumbnail/public/2020-02/thumbnail%20preview.jpg?itok=ODt0tmw7)
Ride-Hailing is a Problem for the 617888九五至尊娱乐
Ride-hailing services are increasing carbon pollution. 我们能做些什么??
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![Cover illustration from UCS book Breathe In the Smog, Drink In the Lead](/sites/default/files/styles/thumbnail/public/2020-02/breathe-in-the-smog-thumb.jpg?itok=ZbG6SgT8)
Breathe In the Smog, Drink In the Lead
Clean air, clean water, good food, safe toys: that's the way it should be for kids. But thanks to some not-so-nice-men in Washington, DC, that's not the way it is.
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![2019617888九五至尊娱乐卫士](/sites/default/files/styles/thumbnail/public/2019-12/GotScience-Yellow.png?itok=IfUVYTOV)
2019年UCS617888九五至尊娱乐捍卫者
UCS is proud to announce the 2019617888九五至尊娱乐卫士—five individuals and groups who have taken a stand for science.
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![](/sites/default/files/styles/thumbnail/public/images/gw-impacts-heat-woman-crossing-railroad-tracks-in-heat-waves.jpg?itok=m4mSqSA7)
Killer Heat Interactive Tool
How much heat can you endure? Our tool shows what to expect in every region of the country.