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El Nino

El Niño is a periodic warming of the tropical Pacific Ocean that shifts global weather, affecting fisheries, sea levels, rainfall and frost risk.

Current stories

scienceOne report1 publisher

NASA satellites show El Niño raising Pacific sea level by as much as 40 centimeters in places

NOAA puts the odds at 83% that the strongest El Niño since 1950 is under way, NASA reports. Satellite maps show the Pacific warming and sea level shifting.

Publishers:nasa.gov phys.org

Reality

Evidence62
Adoption
Not scored
Hype gap+20
Incentives
Not scored
Confidence58
productOne report1 publisher

NOAA's winter outlook puts the odds on a warm north and a wet south during a record El Niño

NOAA's December-to-February outlook tilts the odds toward a warmer northern tier and a wetter south, West Coast and Eastern Seaboard during a record El Niño. The maps are odds, so planners get a lean to start from and no totals to budget against.

Publishers:gizmodo.com

Reality

Evidence58
Adoption
Not scored
Hype gap+15
Incentives
Not scored
Confidence60
scienceConfirmed3 publishers

Galapagos marine iguana seizures overlap with a super El Niño, a Science letter argues

Ecuadorian officials found at least 48 smuggled Galapagos marine iguanas between May and late August, researchers say. Authors of a Science letter say the trade is peaking just as a super El Niño wipes out the intertidal algae the animals eat.

Perspective Coverage

3 publishers
Builder
Builder 3%
Operator
Operator 86%
Investor
Investor 11%

Reality

Evidence55
Adoption
Not scored
Hype gap+35
Incentives
Not scored
Confidence58
scienceOne report1 publisher

A post-El Niño coral reassessment may find over half of species at elevated risk, IPBES chair says

IPBES chair David Obura told AFP that a forecast record El Niño adds "a terrifying level of additional risk" for coral reefs. His Nature review, completed in 2020, put nearly half of species at elevated risk; a new count could pass 50%, he said.

Publishers:phys.org

Reality

Evidence55
Adoption
Not scored
Hype gap+25
Incentives
Not scored
Confidence45
leadershipOne report1 publisher

Peru closed its anchoveta fishery ahead of a forecast super El Niño

Peru, the world's most important fishmeal exporter, turned a 10 June anchoveta suspension into a full closure in mid-August, the Guardian reported. The closure rests on a sea institute's El Niño advice. Feed buyers now depend on whether a second season opens.

Publishers:theguardian.com

Reality

Evidence55
Adoption
Not scored
Hype gap+20
Incentives
Not scored
Confidence50
scienceOne report1 publisher

Attribution teams credit climate change with more of Hurricane Polo's strength than El Niño

World Weather Attribution and Climate Central estimate climate change added about 6 mph to Hurricane Polo's winds, against about 5 mph from El Niño. The comparison covers warm water only and is not yet peer reviewed.

Publishers:winchesterstar.com

Reality

Evidence55
Adoption
Not scored
Hype gap+10
Incentives
Not scored
Confidence58
scienceOne report1 publisher

Satellite rainfall data challenge the idea that El Niño means more landslides

A 2021 Nature Communications study found El Niño years cut landslide exposure in Colombia, the Philippines and Indonesia. Australia's Bureau of Meteorology calls the current event near-record. A blog post on Eos cautions that this year's rainfall response may differ.

Publishers:eos.org

Reality

Evidence55
Adoption
Not scored
Hype gap+10
Incentives
Not scored
Confidence50
scienceOne report1 publisher

Smoke from Amazon fires pushed Manaus PM2.5 above 135 micrograms on October 12

NASA scientists say a drought tied to El Niño has primed the central and eastern Amazon for a long, severe fire season. On October 12, Manaus officials reported PM2.5 above 135 micrograms per cubic meter, the second-worst rating on a regional index.

Publishers:nasa.gov

Reality

Evidence68
Adoption
Not scored
Hype gap−5
Incentives
Not scored
Confidence65
scienceOne report1 publisher

UK farms hit by record heat brace for a wet, stormy El Niño winter

El Niño cut India's summer monsoon rainfall by 13 per cent, New Scientist reported. UK farms that have just had record heat and drought are expecting a warm, wet, stormy winter from the same event.

Publishers:newscientist.com

Reality

Evidence50
Adoption
Not scored
Hype gap+15
Incentives
Not scored
Confidence50
scienceOne report1 publisher

Seven million hectares of forest were permanently destroyed in 2025, 15% fewer than a year earlier

Researchers behind the Forest Declaration Assessment say 7 million hectares of forest were permanently destroyed in 2025, 15% less than the year before. They say that is not enough to meet the 2030 pledge to end deforestation.

Perspective Coverage

3 publishers
Builder
Builder 5%
Operator
Operator 55%
Investor
Investor 40%

Reality

Evidence58
Adoption
Not scored
Hype gap−10
Incentives
Not scored
Confidence62
scienceOne report1 publisher

Copernicus holds off calling El Niño the strongest after a record 29.70C reading in Nino3.4

Copernicus said Nino3.4 sea surface temperatures hit an all-time high of 29.70C in September, above the 1982/83, 1997/98 and 2015/16 peaks. Its newer index, which adjusts for warming of the tropical oceans, does not yet put the event above those three, so the record and the ranking come apart.

Perspective Coverage

5 publishers
Builder
Builder 6%
Operator
Operator 58%
Investor
Investor 36%

Reality

Evidence72
Adoption
Not scored
Hype gap+15
Incentives
Not scored
Confidence70
scienceOne report1 publisher

Wind shear eased off the Gulf Coast long enough for Isaias to form in a quiet Atlantic season

Hurricane Isaias killed at least four people after landfall on the U.S. Gulf Coast as a Category 2 storm with 105 mph winds, Scientific American reported. Two meteorologists quoted there say a quiet season narrows where storms can form without softening the one that does.

Reality

Evidence45
Adoption
Not scored
Hype gap+8
Incentives
Not scored
Confidence50
scienceOne report1 publisher

Peat fires produce most of Indonesia's haze from under a third of its wildfires

Peat burns in under a third of Indonesia's wildfires but yields most of the haze, according to Greenpeace research. Fire emissions reached 140.5 megatonnes by Oct. 6, the highest since 2019, Copernicus data show.

Publishers:phys.org

Reality

Evidence62
Adoption
Not scored
Hype gap+5
Incentives50
Confidence60
scienceOne report1 publisher

Land carbon sink rebounds in 2025 after almost vanishing in 2023 and 2024

Philippe Ciais's team estimates the land carbon sink took up 2.36 gigatonnes of carbon in 2025, 0.71 above the 2015-2022 average. The figure is preliminary and covers a single year, so it addresses the 2023-24 collapse but leaves a slow decline untested.

Publishers:newscientist.com

Reality

Evidence50
Adoption
Not scored
Hype gap−10
Incentives
Not scored
Confidence45
scienceOne report1 publisher

El Niño tops 2015 on a trend-adjusted index whose data starts in 2008

Australia's Bureau of Meteorology says weekly average sea-surface temperatures in the central Pacific are at a record weeks before El Niño's December peak. Planners in exposed sectors still have 1997-98 and 2015-16 as their closest guide, because the record describes ocean heat and no source yet counts this year's damage.

Publishers:bbc.co.uk

Reality

Evidence68
Adoption
Not scored
Hype gap+20
Incentives
Not scored
Confidence62
scienceConfirmed3 publishers

Long Beach has red-tagged eight buildings after three storms in six weeks

Long Beach inspectors red-tagged eight buildings after Tropical Storm Rachel, the third storm in six weeks to hit the Peninsula boardwalk. The city's fire department dates the collapse to the first of them in early September, so Rachel added to damage already under way.

Perspective Coverage

3 publishers
Builder
Builder 15%
Operator
Operator 65%
Investor
Investor 20%

Reality

Evidence62
Adoption
Not scored
Hype gap+15
Incentives50
Confidence70
scienceOne report1 publisher

Haze from Indonesian fires closed Malaysian schools while El Niño was still strengthening

Malaysia closed schools in several regions last week because of haze from Indonesian fires, a phys.org roundup of El Niño impacts reports. The WMO says El Niño will keep intensifying until a December peak. Several damage reports also name causes besides the weather cycle.

Publishers:phys.org

Reality

Evidence58
Adoption
Not scored
Hype gap+15
Incentives
Not scored
Confidence55
scienceOne report1 publisher

UCLA study attributes twice as much of 2024's record rain to warming as to El Niño

UCLA researchers report that global days of heavy rain in 2024 ran 20% above baseline, a record that topped 1983, 1998 and 2016. They tie 40% of the increase to global warming and say conditions favor another record in 2027.

Publishers:phys.org

Reality

Evidence62
Adoption
Not scored
Hype gap+15
Incentives
Not scored
Confidence50
scienceOne report1 publisher

A NOAA reconstruction rates the El Niño behind the 1870s famines at 2.88C above average

NOAA's Boyin Huang and colleagues put the 1877/78 El Niño at 2.88C above average in the Nino3 index, among the strongest in modern history. New Scientist traces an estimated 20 million to 30 million famine deaths in India, China and Brazil between 1876 and 1879 to that event.

Publishers:newscientist.com

Reality

Evidence55
Adoption
Not scored
Hype gap+8
Incentives
Not scored
Confidence50

Earlier coverage

  1. Indonesia releases eight orangutans rescued from Borneo fires into a protected reserve

    Science · October 11, 2026 · Confirmed3 publishers

  2. Every one of the eight hottest months ever measured has arrived since July 2023

    Science · September 10, 2026 · Confirmed3 publishers

  3. Tropical Storm Rachel's swell floods Southern California's coast ahead of a rare landfall

    Science · October 10, 2026 · Confirmed3 publishers

  4. Late-arriving Hurricane Isaias halts 63% of Gulf of Mexico oil output ahead of landfall

    Science · October 9, 2026 · Confirmed2 publishers

  5. Isaias is forecast to become 2026's first Atlantic hurricane before a Gulf Coast landfall

    Science · October 7, 2026 · Confirmed3 publishers

  6. Super El Niño's Kelvin wave could lift California sea levels by up to 30 centimetres

    Science · September 30, 2026 · Confirmed3 publishers

  7. NHC warns of Gulf Coast and Florida flooding from AL92 whether or not it becomes a hurricane

    Product · October 6, 2026 · Confirmed2 publishers

  8. CONAF says seasonal rain topped 180 millimetres in parts of the Atacama for the first time

    Science · September 23, 2026 · Confirmed2 publishers

  9. Lala never made landfall, and the category was the least useful number in the file

    Science · August 16, 2026 · Confirmed3 publishers

  10. The ocean's hottest day on record landed in August, and that is the number that matters

    Science · August 24, 2026 · Confirmed3 publishers

  11. Hurricane Polo climbed to Category 5 in under 24 hours over record-warm Pacific water

    Science · September 23, 2026 · Confirmed3 publishers

  12. NOAA puts the odds of a record-strength El Nino at 69%

    Science · September 22, 2026 · One report1 publisher