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Topic

Climate change attribution

Scientific field using statistical and climate-model methods to assess how much human-caused warming contributed to specific extreme weather events or trends.

Current stories

science1 publisherOne report

Nepal's Rasuwa flood request tests a UN loss and damage fund built around scheduled windows

Nepal is still waiting on the UN loss and damage fund a month after Rasuwa floods killed more than 1,400 people and left a rebuild costing almost $5 billion. How the fund weighs climate change's role, which it has yet to decide, will shape how fast vulnerable countries get paid.

Publishers:nature.com

Reality

Evidence40
Adoption
Insufficient
Hype gap+15
Incentives
Insufficient
Confidence40
science3 publishersConfirmed

Nepal's debris flow began 5,150 metres up as a 2.2-square-kilometre slab of bedrock

Satellite images of the August 26 collapse show a fresh, uniform scar high on Langtang Lirung's north face. The volume researchers estimate from it, about 110 million cubic metres, averages roughly 50 metres of rock and ice.

Perspective Coverage

3 publishers
Builder
Builder 33%
Operator
Operator 52%
Investor
Investor 15%

Reality

Evidence66
Adoption
Insufficient
Hype gap+8
Incentives45
Confidence62
science3 publishersConfirmed

El Nino's daily Pacific anomaly reached 3.08 C in September, months before its expected peak

Science News reports the El Nino region's daily sea surface anomaly hit 3.08 C on September 21, past the 3.02 C mark set in November 2015. NOAA's preferred index still ranks the 1997-98 event stronger, leaving two analogues in play for the coming seasons.

Perspective Coverage

3 publishers
Builder
Builder 18%
Operator
Operator 54%
Investor
Investor 28%

Reality

Evidence70
Adoption
Insufficient
Hype gap+20
Incentives
Insufficient
Confidence68
science6 publishersConfirmed

Nepal's deluge began as a glacier falling a kilometre into a river it then dammed

Satellite and seismic analyses point to ice that snapped off above 5,000 metres, blocked the Lhende Khola and burst through hours later. Almost no rain preceded it, which is why the region's flood warning tools had nothing to read.

Perspective Coverage

6 publishers
Builder
Builder 43%
Operator
Operator 38%
Investor
Investor 19%

Reality

Evidence74
Adoption62
Hype gap−8
Incentives34
Confidence70
science6 publishersConfirmed

Thirteen Galápagos corals put recent El Niños about 40% above their preindustrial strength

Coral chemistry from the eastern tropical Pacific has finally put a number on how much warming has strengthened El Niño. The natural-forcing alternative fails the test the same authors ran.

Perspective Coverage

6 publishers
Builder
Builder 47%
Operator
Operator 41%
Investor
Investor 12%

Reality

Evidence68
Adoption
Insufficient
Hype gap+22
Incentives58
Confidence74