Population

Grim New Bird Report Shows U.S. Duck Population Dwindling

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WASHINGTON — At least 112 North American bird species have lost more than half their populations in the past 50 years, according to a new report published Thursday. Among the birds showing the steepest declines are Allen’s hummingbirds, Florida scrub jays, golden-cheeked warblers, tricolored blackbirds and yellow-billed magpies. “These are the very real consequences if … Read more

Majority of the World’s Population Breathes Dirty Air

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BENGALURU, India — Most of the world has dirty airwith just 17% of cities globally meeting air pollution guidelines, a report Tuesday found. Switzerland-based air quality monitoring database IQAir analyzed data from 40,000 air quality monitoring stations in 138 countries and found that Chad, Congo, Bangladesh, Pakistan and India had the dirtiest air. India had … Read more