Mary Catherine O'Connor

Mary Catherine O'Connor

Author's Bio

Mary Catherine O'Connor (@mcoc) is a freelance journalist who writes the Adventure Ethics column, about the intersection of adventure and environment, for Outside online. 

The Invisible Nightmare in Your Fleece

Billions of non-biodegradable microfibers from our clothing eventually make their way to our waterways, where they can have significant negative effects on aquatic ecosystems. Now that the problem...

The Dirty Secret Hiding in Our Outerwear

Patagonia pulled on a thread and found migrant workers suffering under servitude in its supply chain. Will its disclosures prompt other brands to air their dirty laundry (or even look for it), as...

Waterproof, Breathable, and Toxin-Free

Your ski jacket is full of petrochemicals. Ditto a fair amount of the other clothing in your closet that attains that magical, paradoxical state of being both waterproof and breathable when you’re...

Beyond Strava

Public transit and trail data is becoming truly public. And whether you're biking to work or squeezing into a bus, that's a huge deal.

Why Obama's New Regs Scare Big Coal

New emissions limits are sure to push coal further out of the U.S. energy mix, but what's to stop that carbon from being shipped overseas?

The Incredible Journey of Gray Wolf OR-7

A wolf named OR-7 made history when he left Oregon for California, all on his own. Now, with a media following and a new mate, he's kind of a big deal.

Is Consumerism The Climate's Enemy?

In his new book, The Big Pivot: Radically Practical Strategies for a Hotter, Scarcer, and More Open World, Andrew Winston argues that environmental changes are forcing companies that make our cars,...

Everest Is Melting

The poles are melting, but so are high mountain ranges in and near the tropics.