Trump Officials' Nuclear Fear: EMP Threat to Power Grid
How top Trump officials amplified fears of a nuclear EMP that could cripple the U.S. power grid, and what science says about the real risk.
Explainer: What Is El Niño and Why It Matters
El Niño is a periodic climate pattern that disrupts weather worldwide. Here's how it forms, what it does, and why it matters.
Croatian Town's Toxic Waste Crisis Sparks National Outcry
Residents of Gospić, Croatia, took a stand against illegal toxic waste dumping, igniting a nationwide call for environmental clean-up and regulatory reform.