New efforts underway to protect dwindling monarch butterfly population

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Multistate agreement to reduce water for Colorado River is 'stopgap solution at best'
03:01
Watch: Climate activists pour black liquid into Rome’s Trevi Fountain
01:21
Wildfires continue to burn across Canada
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Biden administration announces new standards on power plant emissions
02:30
Masses of seaweed multiplying at record-breaking levels and heading for Florida’s beaches
03:04
Is hydrogen the clean fuel of the future?
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