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A new paper claims that the ozone hole above Antarctica is getting deeper, suggesting that it is not healing as expected. However, other researchers say the study's results are misleading.
El Niño is in full swing and will likely remain "strong" this winter, but its effect on weather patterns in the U.S. depends on the behavior of an unusually warm blob in the western Pacific, experts say.
Climate change and rising sea levels could cause similar floods along the West Coast each year without El Niño by the 2030s, NASA warns.
A record drought, combined with a strong El Niño, is wreaking havoc on the Amazon. If steps aren't taken to curb illegal mining and deforestation, the ecosystem could collapse.
Thanks to El Niño, meteorologists are predict a snowy winter in the Rockies, storms and wet weather in the South and drier conditions in the Northwest and Uppder Midwest.
Satellite data shows that this year's ozone hole grew to around twice the size of Antarctica. Researchers say the eruption of Tonga's underwater volcano early last year may be partially to blame for the enormous cavity.
El Niño is a climate cycle in which waters off the tropical eastern Pacific are warmer than usual, which in turn affects global weather patterns.
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