North & Central America

This archive covers progress stories from North and Central America, spanning the U.S., Canada, Mexico, and the nations of Central America. Readers will find reporting on health, environment, community resilience, and policy advances across the region.

Depiction of spiral-welded wind turbine construction, for article on spiral-welded wind turbine tower

GE installs world’s first spiral-welded wind turbine tower

Spiral-welded wind turbine towers could quietly dissolve one of the biggest barriers holding back wind energy: the highway. Because conventional towers must be trucked in, U.S. road regulations cap their diameter — and therefore their height — well below what the physics of wind actually allows. Keystone’s mobile factories build towers on-site from coiled steel, removing that constraint entirely and making towers tall enough to reach stronger, more consistent winds. One tower doesn’t rewrite the industry, but it proves the concept works. If the approach scales, it could bring competitive wind energy to regions that have never had it.

Shark, for article on Hawaii shark ban

Hawaii becomes first U.S. state to ban shark fishing

Hawaii just became the first U.S. state to protect all shark species—a move that recognizes these keystone predators as both ecologically essential and culturally sacred. Sharks keep ocean food webs balanced, yet more than 100 million are killed annually and populations have plummeted 70 percent since 1970. The law allows Native Hawaiian cultural practices while penalizing illegal capture, with enforcement powers to address bycatch. This sets a template for ocean protection worldwide: when we anchor conservation in both science and culture, entire ecosystems stand a fighting chance.\n\n**Word count: 83**

Neurons inside human brain, for article on fentanyl relapse brain circuit

Brain circuit breakthrough paves way for opioid addiction treatments

Scientists have discovered a specific brain circuit that drives the emotional crash—anxiety, depression, craving—keeping people trapped in the fentanyl cycle even after they’ve stopped using. By identifying this discrete target, researchers now have a concrete mechanism to aim at rather than the broad-brush approach of current treatments. The finding matters because it fills a gap addiction medicine has long faced: understanding exactly how fentanyl rewires the brain. This precision opens a path toward tailored therapies that could ease withdrawal’s emotional weight and improve the odds of lasting recovery.\n\n**Word count: 99**