Katie O'Reilly

Katie O'Reilly is Sierra's former adventure and lifestyle editor. Follow her on Twitter @katieowrites.

Party Like It’s Earth Day 2019

Eight fun (we promise!) ways to fete the planet

By Katie O'Reilly April 18, 2019

In this story: earth day, holidays

Diapers and Pads May Be Leaching Chemicals Into Our Bodies

A new study highlights how a lack of regulation puts women and babies at risk

By Katie O'Reilly April 7, 2019

In this story: toxics

Behind the Scenes With Netflix's “Our Planet”

Its filmmakers talk about creating the epic-yet-uncomfortable nature series

By Katie O'Reilly April 5, 2019

In this story: film

Our Planet, Ourselves

Netflix is streaming an ambitious nature-doc series around the globe

By Katie O'Reilly April 5, 2019

In this story: film

Stop Flushing Forests Down the Toilet

The softer your TP, the more we're all doomed

By Katie O'Reilly March 14, 2019

In this story: forests

Bear Grylls Gets Candid About Entering the Realms of Beasts

The “Hostile Planet” host's spirit animal is not in fact a bear

By Katie O'Reilly February 27, 2019

In this story: adventure

Wildlife Contends With Climate Chaos on "Hostile Planet"

Inside the Bear Grylls–hosted nature show for the environmentally "woke"

By Katie O'Reilly March 2, 2019

In this story: climate change

A jaguar bites the neck of a caiman on the bank of a river in Pantanal, Brazil.

25 Ways to Set an Earth-Loving Mood This Valentine’s Day

Gifts that say “I love you like you love the planet”

By Katie O'Reilly February 12, 2019

In this story: holidays, buyers' guide

8 Ways to Start Easin' Into Vegan

Resolve to make your diet more plant based in 2019

By Katie O'Reilly January 8, 2019

In this story: vegan, food and drink, animal rights

14 Gifts That'll Enhance a Lean, Green Household

Check out some seriously practical yet delightful presents

By Katie O'Reilly December 20, 2018

In this story: holidays