No it gets returned to the earth via rain, the circle of life if you will. I saw something on mount fuji in Japan last night I think every day it produces 100 million tons or litres of water. Thats a lot of water.
and the polar ice caps and glaciers melting due to global warming will only add to the usable water suply. what do you mean by running water? do you mean like water within our homes or water that runs by gravity and such like rivers?
i mean drinking water and the water we use in our homes. would the "good" water ever run out? and is it possible for the world to flood?
Ok so i don't know a lot about the subject, but my grandad was telling me about how our water sources were all running low, and how we are taking water from underground and stuff and i can't remember it all. Someone want to tell me what i'm on about? But yes, of course it won't run out completely, but we can't exactly survive off drinking sea water, polluted sea water at that.
I am not saying the pollution is a good thing but with the technology we have today we can make sewer water drinkable. So with this new technology we will never run out. the problem will then be who will have access to the water.
Were I live it's hard to comprehend somthing like a water shortage. Kentucky must have more water than all the other parts of the country put together. It rains every other day here, and the creeks and springs seem to always be full. That being said, there are a lot of places were availability of water is a serious pressing issue. So I guess it all comes down to what part of the world you live in, some places having an abundance of water and others having major shortages, but overall I don't see a worldwide shortage happening anytime soon.
It's gonna happen, especially with an unaware attitude. Water is a big deal here because we know the US wants ours. Look up about 'peak water'. The SW states are on the wrong side of that peak water curve and are scrambling. This really isn't a simple issue of, oh there's glaciers we'll be ok. We need to be alot more forward thinking that this. I'll try and post some info later on that can perhaps make my point clear.
don't forget that large parts of North and South Americal look more like this rather than this: these photos are taken 600 miles apart. Both are early fall. The Canyonlands shot is after a year with more precipitation, compared to the Boulder Creek shot.
That's somthing like what I meant in my message, some places having alot of water and some places not having much at all.
The problem with fresh water is not drinking water as I stated before. If you get your water from a tap which comes from a water treatment plant then you will not have to worry about fresh water because it is very possible to make pure water out of contaminated water. Most fresh water is wasted, think of how much water is used for lawns and gardens. we need to start doing things such as recycling our used water from showers to be used in toilets and have more people collecting rainwater. The problem for most of us posting here is not drinking water but how the pollution affects wildlife populations. My work mainly revolves around water quality and finding pollution. In my area the biggest source of pollution is fecal coliform from septic tanks, as well as chemicals (pesticides and nutrients) from logging and agriculture.
A lot of innovative stuff is being done in those areas. The last I heard, Las Vegas was engineering serveral new methods of recycling water, The fountain show at Belagio is said to use recycled toilet water, for example, and Key West, FL has many solutions for rain water collection. We need to spread the technologies they have discovered to people around the country and the world.