With recent record-breaking summer heatwaves, spiking urban temperatures have become a major concern for cities tackling climate change. Densely populated areas are warming far faster than their rural and suburban surroundings, creating dangerous “urban heat islands” that threaten public health, increase energy consumption, and disproportionately impact city-dwellers with lower incomes.

The dorado catfish (Brachyplatystoma rousseauxii), known as the dourada in Brazil and the zúngaro dorado in Colombia and Ecuador, is a goliath among freshwater fish. It commonly reaches 6 feet and 200 pounds.

Some environmental concerns seem further away than others, but few are as immediately alarming as drought.

Imagine a typical morning routine. You hit snooze, gulp down a coffee, scroll through troubling news, and brace yourself for a crowded commute through hazy city air. It feels like just another stressful Tuesday. But what if your body wasn’t just feeling that stress—what if it was recording it, down to the very ends of your chromosomes?

When Campbell “Buzz” Scott started his scuba diving and remote-operated vehicle (ROV) piloting classes years ago, he was hoping to inspire the next generation to fall in love with the ocean like he did. But as he surveyed the bottom of the Maine coastal waters with his first students, they couldn’t stop staring at the plethora of abandoned lobster traps below.