Environment & Climate
Himalayan disaster prompts concerns over looming super El Niño
Following fatal floods and landslides in Nepal and Tibet, researchers warn an approaching strong El Niño could worsen regional warming and slope instability.
The short version
- A massive landslide triggered a debris avalanche and floods across Nepal and Tibet, leaving over 1,000 people dead as rescue efforts continue.
- Scientists note that unusually high August temperatures likely intensified snow and ice melt, contributing to slope instability before the catastrophe.
- Experts are raising concerns that an anticipated super El Niño peaking around December could further exacerbate warming and unpredictability across the Himalayas next year.
- Researchers have not yet determined whether the developing El Niño directly contributed to the recent disaster.
Key facts
- A massive mountain landslide caused a debris avalanche and widespread flooding across Nepal and Tibet, killing more than 1,000 people.[Scientific American]
- The region experienced an unusually warm August, which scientists indicate may have accelerated melting of snow and ice and weakened slopes.[Scientific American]
- A super El Niño is forecast to peak near December, potentially ranking among the strongest recorded.[Scientific American]
- Historical data indicates that El Niño patterns typically bring warmer temperatures and drier monsoons to the Himalayas during the following boreal summer.[Scientific American]
What remains uncertain
- Scientists state there is insufficient data to confirm whether the forming El Niño was a factor in the recent floods and landslides.[Scientific American]
- The precise weather effects in the Himalayas remain uncertain, depending on local microclimates, Indian Ocean influences, and whether the system shifts into La Niña by next summer.[Scientific American]
Sources
- How the super El Niño could turbocharge warming in the HimalayasScientific American metered