Showing posts with label water. Show all posts
Showing posts with label water. Show all posts

2013-04-22

Water is necessary

What do you need? What is essential to every day of your life? In the world of instant gratification, global communication, and relative safety, you might find yourself thinking that you "need" more than truly necessary: Food, Water, Shelter.

When I wrote the survival series, it was about educating people whose basic needs are met in their daily lives. My hope continues to be that those articles can be a helpful resource and provide the knowledge which could save lives in unexpected situations. However, today is Earth Day and I'd like to take a more globally aware view.


URL: http://en.wikipedia.org/wiki/File:D-P005_Kein_Trinkwasser.svg

There are far more people in this world who live in a state of basic survival need everyday than those whose needs are met. People lacking proper nutrition, basic safety/security, and the most basic life need: water. In my articles about the human population reaching 7 billion, I mentioned some statistics about water and sanitation.
Lack access to safe drinking water (1.1 billion): 17.74%
and/or
Lack access to basic sanitation (2.6 billion): 41.93%

Years ago, I briefly shared a video from charity:water about their projects to bring clean drinking water to people around the world. Two years ago, I saw another video from them that I've been thinking about since.

URL: https://www.youtube.com/watch?v=BCHhwxvQqxg

The necessity of water to life is unmistakable, so too are the detrimental effects on the people and communities lacking clean water. Now and again, some people in the developed world are shocked into a life without basic needs (e.g. New Orleans after Hurricane Katrina, New England after Hurricane Sandy, the disastrous Carnival Triumph cruise ship). It's in those situations that basic survival skills become the focus of every moment; imagine living always in that state. As the video notes, the time spent trying to meet our basic needs is time that can't be spent on developing ourselves and our community.

Not everyone has the resources, desire, or freedom to lend to the needs of others, but we all feel stress when our needs are being threatened. By keeping an awareness and empathy about that stress, maybe we can each make an effort to recognize and connect with others, helping to improve the overall human condition with the simplest kindness.

2011-12-22

Survive in extreme temperatures

Six months ago, at the June solstice, I wrote "a series of Survival Guides in an attempt to educate and inform readers of wilderness survival techniques". Today, on the day of the December solstice, I would like to revisit the subject of survival.


Photo from telegraph.co.uk [found via Universe Today]

During a solstice, the "tilt" of the Earth is at its greatest angle in relation to its orbit around the Sun. Meaning, the Northern hemisphere is in the depths of Winter and the Southern hemisphere is at the peak of Summer. The solstice is a time of astronomical extremes and so are the conditions on our planet. Inspired by these extremes, I want to give you some guidance in today's article on surviving extreme temperatures.

Whether freezing cold or scorching heat, extreme temperatures stress the human body to death. Though apparent opposites, heat and cold cause similar problems. The human body is a system run at a consistent core temperature, any environment outside the usual comfort limits to this system causes the body to have to work harder to maintain its core temperature.

We have at least three options when it comes to our process of temperature maintenance:
1. Change our environment/location to bring it within our comfort limit.
2. Provide our bodies with the resources necessary to continue to operate under the demands of increased work.
3. Do nothing, risking the possibility that our body will fail to meet the new demands. Said simply: Death.
Regardless of the temperature, we need to address these basic components: shelter, water, and first-aid. Shelter allows us to insulate ourselves against the extremes (option 1). Water is a necessity for maintaining our internal system (option 2). First-aid allows us to treat any damage the environment may have caused to our bodies, injury and illness puts our body at greater risk, stressing it further.


SHELTER
Finding shelter is important in both heat and cold. In times of heat, it will shield you from the Sun and help you keep a little cooler. In times of cold, shelter will help stay warm and protect you from rain or snow.

"Shelter" is not only physical standing structures, shelter can refer to clothing as well. It's all about environmental comfort. When keeping warm, remember the COLD acronym:
CLEAN - Dirt weighs down clothing, decreasing the amount of air between one layer and the next. Air is essential to insulate the body and keep in the heat.
OVERHEATING - If you overheat your body, you'll begin to sweat. The moisture will cool you faster, not a good thing when trying to stay warm. Keep things comfortable, not hot.
LAYERS - Keep your layers loose. It's important to keep your blood flowing easily. It will help to circulate your core temperature and keep your extremities warm.
DRY - Any moisture, including sweat, cools the skin and collapses the layers of clothing.
Clothing is important for keeping cool as well. If trying to stay cool, clothing will help slow the evaporation of sweat. Additionally, clothing will protect your skin from the direct sunlight. Beware not to wear too much clothing though; cover what you are able, but don't overheat yourself further.


WATER
As I said in my article about Finding Water:
You should drink about two liters of water per day (2 L ≈ .5 gal) under normal circumstances. In more strenuous situations, you should intake four to six liters per day; "strenuous" describes anything outside tolerable temperatures (21°C ≈ 70°F) or stress levels (physical or mental). Basically, drink 2 liters when you're feeling average; more if you're not feeling average.
Staying hydrated is one of the most important steps to ensuring your survival. In addition to what I've already addressed in my related article, here are some other guidelines:
- Avoid drinking caffeine or alcohol; those drinks will take more moisture from you than they offer.
- Do not eat/drink frozen water (e.g. snow or ice). If you do consume frozen water, you'll decrease your core body temperature, which your body then has to fight to restore. So, melt first!
- If trying to stay warm, avoid getting your clothes and skin wet when finding or consuming water.

FIRST-AID
Frost bite, sun burn, and exhaustion are a few of the dangers you face in extreme environmental conditions. I wrote about common ailments in my Wilderness First Aid article, be sure to supplement that knowledge with the following tips:
- Be careful with your skin. Both frost bite and sun burn are similar in their effect on the body.
- Don't ever rub damaged skin, you'll cause even more damage.
- Wear loose clothing so that you don't restrict blood flow.
- When trying to rewarm frost-bite, do NOT use hot water. Ideally, use water between 38°C (≈100°F) to 41°C (≈106°F).

Please take care in all times of year, especially when facing environmental extremes. Always try to stay informed of possible changes in weather and always plan/pack for the worst-case scenario whenever you leave your home (even if only a "quick trip").

2011-07-11

Survival Guide: Find water

Water is everything. Staying hydrated should always be your first priority; this is true whether you're stranded in the middle of the wilderness or standing in line at the grocery store.

In favorable conditions, a human can live without water for three to five days. In fact, that time frame is the reason I chose to stagger the publishing of these survival guides by four days.

You should drink about two liters of water per day (2 L ≈ .5 gal) under normal circumstances. In more strenuous situations, you should intake four to six liters per day; "strenuous" describes anything outside tolerable temperatures (21°C ≈ 70°F) or stress levels (physical or mental). Basically, drink 2 liters when you're feeling average; more if you're not feeling average.

Situations threatening our survival are among the most stressful situations we can face. Those would generally be the very same situations in which finding water to consume would be challenging at best. In this article I will present a variety of means you can attempt when trying to locate water in the wilderness.

STREAMS, RIVERS, AND LAKES
- Water flows down. Find streams and rivers in valleys and flood plains.
- Collect flowing water, as opposed to stagnant water. Not too fast, though, as that stirs up sediment.
- Look for reeds, like cattails, which grow in marshy conditions.
- Watch for birds at dawn and dusk. They tend to hunt around bodies of water during those times.
ICE AND SNOW
- Collect undisturbed ice and snow from your surroundings.
- Snow-melt and glaciers are common sources of water flow. Follow upstream to look for these sources.
- Avoid consuming water while it is still frozen.
GROUNDWATER
- Trees with thick roots tend to grow near good sources of groundwater. (e.g. willows, cottonwoods, and many other deciduous trees).
- Moisture is easier to find at the base of cliffs or beneath rocks.
- Once you find damp soil, dig into it with a stick or rock. Dig deep to where water begins to fill the hole. (The surrounding soil acts as a basic filter.)
- There may be underground water next to stagnant pools. Avoid the pool itself, using "filtered" water around it. (See "filtration" below.)
- Gather water using the "distillation" process below.
RAINWATER AND DEW
- Collect moisture from the air and foliage with (or wearing) absorbent cloth like cotton.
- Use leaves and water resistant materials to funnel rainwater into a centralized location.

Once you think you've gathered enough water, you can attempt to purify it using the methods below. It's important that you purify the water before consumption.

BOILING
STEP 1: Enclose (but don't seal) your water within a container.
STEP 2: Heat the water to a "rolling boil". (Meaning, big wavy air bubbles.)
STEP 3: Allow the water to boil for a minimum of 5 minutes, 10 minutes is safer.
STEP 4: Let the water cool and condense in the container.
CHEMICAL TREATMENT
There are many chemical treatments available for purchase (such as iodine). If you have no other options, you can even use a very tiny dose of bleach as a chemical treatment. In my opinion, no chemical treatment (aka poison) should be consumed regularly.

STEP 1: Carefully drop a single dose of the chemical into your water container.
STEP 2: Tightly seal your container.
STEP 3: Shake well.
STEP 4: Wait at least 20 minutes.
STEP 5: Carefully unseal your container; avoid dropping any foreign material (or untreated water) into it.
FILTRATION
If you don't have access to consumer available filters, you may have to make your own using the method below. Filtration is an essential step in the treatment of water and, therefore, I encourage you to use all or some of these steps no matter how you gathered your water.

STEP 1: Layer cloth, sand, and pebbles over (or between two) container(s).
STEP 2: Pour the water repeatedly through the layers until it runs clear.
DISTILLATION
STEP 1: Dig a hole that is about 25 cm (10 in) deep. It needs to be as wide as your collection container. (The hole should fit two containers, if distilling already collected water.)
STEP 2: Place your empty container in the hole right-side-up. (If distilling collected water, also place the container containing the water in the hole right-side-up alongside the other.)
STEP 3: Open the container(s).
STEP 4: Cover the hole with thin flexible plastic, like plastic wrap or a bit of trash bag.
STEP 5: Seal the edges around the hole by weighing down the plastic.
STEP 6: Make a small puncture in the plastic above the empty container.
STEP 7: Place a small rock nearly atop the hole, making the plastic stretch into a funnel shape.
STEP 8: The sun will evaporate the water. It will then condense on the plastic and run down the funnel and into the collection container. (This process can take hours.)

My personal purification preference is to combine the methods above when necessary and possible:
GATHER, FILTER, DISTILL, BOIL, TREAT.

Sometimes, even after purification, the water may not be as clear as you are accustomed. This is due to the sediments in the water (aka "hard water"). Your body will be most accustomed to consuming the water in your primary region, so you may notice some discomfort as any remaining bacteria or sediment in the water may not be what your body normally processes.

Remember, staying hydrated should always be your first priority!