Up First from NPR
Up First from NPR

Aug 29, 2026 · 18 min

El Niño, vaccine failures and Iran’s wartime strain

Super El Niño, Measles, Iran War Stalemate

The episode connects a climate threat, public-health breakdown and prolonged conflict to the pressures shaping everyday life and policy.

3 key takeaways
  1. 1A powerful El Niño could bring extreme heat, drought and flooding, with climate change potentially amplifying its effects.
  2. 2Two measles-linked deaths in Pennsylvania sharpen criticism of Robert F. Kennedy Jr.’s vaccine messaging and public-health response.
  3. 3After six months of war, sanctions and inflation are reshaping life in Iran while military pressure narrows public and journalistic space.

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Reza Sayah’s account from Tehran brings the abstract costs of war, sanctions and inflation into the constraints of daily reporting and life.

The brief

A powerful El Niño is developing as a global weather risk, bringing the prospect of record heat, drought and flooding while climate change may intensify its effects.

Lauren Sommer explains why this El Niño is unusually strong and what preparations could mean for the United States as forecasters anticipate disruptive weather.

Two measles-linked deaths in Pennsylvania expose the stakes of declining vaccination rates and intensify criticism of Health Secretary Robert F. Kennedy Jr.’s messaging.

From Tehran, Reza Sayah describes six months of war, sanctions, inflation and military pressure, alongside the limits and freedoms he encounters as a journalist.

Taken together, the reports show how environmental volatility, public-health communication and geopolitical conflict translate into pressures on institutions and ordinary life.

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El Niño, vaccine failures and Iran’s wartime strain | PodLume