SUBSCRIBE | NEWSLETTERS | MAPS | VIDEOS | BLOGS | MARKETPLACE | CONTESTS
Full Name:
City:
Address 1:
State:
Zip Code:
Address 2:
Email: (required)

If I like it and decide to continue, I'll pay just $12.00, and receive a full one-year subscription (9 issues in all), a 73% savings off the newsstand price! If for any reason I decide not to continue, I'll write "cancel" on the invoice and owe nothing.


Offer valid in US only.
Canadian Subscriptions | International Subscriptions

CLOSE WINDOW

Also on Backpacker.com


Enter Zip Code
Editors Choice

EDITORS' CHOICE AWARDS 2011: THE BEST NEW GEAR




Flash Map

OVER 3,000 GPS-ENABLED TRIPS!



Daily Dirt

DAILY DIRT BLOG: THE LATEST OUTDOOR NEWS



Ask Kristin

GEAR PRO: YOUR QUESTIONS ANSWERED



Ask Buck

MEDICINE MAN: ESSENTIAL SKILLS REVEALED



Backpacking 101

BACKPACKING 101: GET STARTED NOW!



Videos

VIDEOS: FEND OFF A BEAR, PACK RIGHT, AND MORE.



Photos

PHOTOS: FEAST YOUR EYES WITH THESE SHOTS



Share your tales of travel & adventure with our step-by-step guide. Upload trail descriptions, photos, video, and more. Get Started

Backpacker Magazine – October 2011

Survival: Carbon-Dioxide Poisoning

Ventilate your tent to avoid this danger.

by: Shannon Davis





On Colorado’s Mt. Bancroft, I woke up in the middle of a long winter night, heavy-headed and gasping. My heart was beating like a guy who just ran a marathon at 15,000 feet. A snowstorm had buried the perimeter of our small, two-person single-wall tent and covered the vents, cutting off airflow. But I didn’t realize what was happening—or make a move to fix it—until much later, when my buddy went out to pee and a wave of fresh, oxygenated air rolled in the open door reviving us. We laugh about it now—the most lethal part of our climb happening in our sleep—but I could have died of carbon-dioxide poisoning. Ventilate the tent (open a gap in the door, if needed), shake off fresh snow, and don’t always whiz in a pee bottle—poking your head outside once in a while could save your life.



Sea Kayak Flip
Casey Lyons, BACKPACKER associate editor

No Water in the Desert
Annette McGivney, BACKPACKER Southwest editor

Dress for Lightning
Matt Walker, mountaineer,

Sea Kayak Flip
Casey Lyons, BACKPACKER associate editor

Predict a Flash Flood
Ken Phillips, Chief of Emergency Services, Grand Canyon National Park

BYO Survival Gear
Chris Thomas, mountaineer




Subscribe to Backpacker magazine
Sign up for our free weekly e-newsletter
Reader Rating: -

READERS COMMENTS

Robin - humans exhale carbon dioxide. Carbon monoxide is the biproduct of burning. So yes he means CO2 not CO.

Patrick - what you should learn from this is how toxic your own breath is and how the critical function of your tents venting system can be interrupted by snow, or other obstruction - something that few campers would consider.
Posted: Jan 19, 2012 Craig

Perhaps you mean carbon monoxide?
Posted: Nov 14, 2011 Robin

That's it? Open the door? I thought I might learn something by reading this. What a waste of ten seconds.
Posted: Nov 11, 2011 Patrick

ADD A COMMENT

Your Name:

Comment:

My Profile Join Now

Most recent threads

Trailhead Register
How is Your Garden Doing?
Posted On: May 24, 2012
Submitted By: Adirondackiteer
The Political Arena
Healthcare costs for American families increase
Posted On: May 24, 2012
Submitted By: Kevins89notch
Go
View all Gear
Find a retailer

Special sections - Expert handbooks for key trails, techniques and gear

International Travel
From Nepal to New Zealand, we have stories and tips to help you plan the perfect 'life list' trek abroad. Powered by:

Navigation Center
Learn how to orient a map, navigate any terrain, and the ins-and-outs of GPS devices.

BACKPACKER's Free Smartphone GPS App
Record and share you adventures with our new, free navigation app. Plus, discover thousands of GPS-enabled hikes in national parks and major cities.

Backpacker Expeditions
Backpacker Expeditions will challenge your outdoor fortitude and indulge your passion for discovery. Powered by:

Follow BackpackerMag on Twitter Follow Backpacker on Facebook
Name:
Address 1:
Address 2:
City:
State:
Zip:
(required) Email:

If I like BACKPACKER, I'll pay just $12.00 and receive a
full one-year subscription (9 issues in all), a 73% savings
off the newsstand price! If for any reason I decide not to continue, I'll write "cancel" on the invoice and owe nothing.

SUBMIT MY ORDER Offer valid in US only.
Canadian subscriptions | International subscriptions

Pay Now