National Geographic Magazine
Attack of the Alien Invaders
All over the world, animals and plants that evolved somewhere else are turning up where they're not wanted… READ ARTICLE
The Wet Wild
Cowboys, caimans, and mud come together in the Pantanal, where modern pressures threaten the health of one of the world's largest wetlands… READ ARTICLE
The Household Environmentalist
Radon? Yes it's boring…
RADONZZZZZZZ. This is going to be a difficult column to write. The trouble is that the subject is so boring I keep drifting off as I do my research… DOWNLOAD PDF (448 KB)
Plant Amnesty's hall of pruning horrors
Seattleites have a reputation for being ever so civilized, with their lattes and their book groups and religious devotion to crossing only with the light and at the crosswalk… DOWNLOAD PDF (1.5 MB)
National Geographic Adventure
La Chiquitita takes Cuba
For weeks before I went biking in Cuba, I lay awake at night, fretting. It wasn't the 50-mile days over the Sierra del Rosano that had me worried. Nor was it… READ ARTICLE