Water
Generally, most people can at least improvise shelter from weather.
You can't improvise water.
You do need air more than water, but most people have enough, and usually you can filter air. So far, air isn't all that polluted to where you can't survive on what air you currently breathe (although in places like Beijing, air is a severe problem: http://www.theatlantic.com/notes/20...n-beijing-this-week-gray-skies-next-week-the-logic-of-chinese-pollution/403579/ ).
But water is increasingly a huge problem, almost everywhere.
California has severe water problems and grows a significant percentage of our food - especially fruits and veggies.
http://www.slate.com/articles/healt...alifornia_grows_all_of_our_fruits_and_vegetables_what_would_we_eat_without.html
But they also have a large population and a serious drought.
http://www.foxnews.com/us/2015/08/3...1/when-wells-run-dry-california-drought-forcing-some-families-to-live-in-third/
Even the Pacific NW where we joke about how much rain we get - (people don't tan in Orygun - they rust) - about 80% of the state is considered to be in a drought condition, and the PNW in general has had severe wildfire problems this year because of extremely dry conditions in the forests.
Around me, water levels in wells are dropping and have been for years.
The problem is pretty straightforward - it is all about numbers; the numbers of people. The world population keeps growing, which means less water per person. Add to that, the fact that yes, humans do affect the climate, making it worse, with some places facing drought while others face floods. In the PNW we face a "mild" winter this year, which means we won't get much snow, which means our reservoirs will not fill up and the spring melt won't help much.
Photo of one of our major reservoirs normally:
What it looks like now:
Generally, most people can at least improvise shelter from weather.
You can't improvise water.
You do need air more than water, but most people have enough, and usually you can filter air. So far, air isn't all that polluted to where you can't survive on what air you currently breathe (although in places like Beijing, air is a severe problem: http://www.theatlantic.com/notes/20...n-beijing-this-week-gray-skies-next-week-the-logic-of-chinese-pollution/403579/ ).
But water is increasingly a huge problem, almost everywhere.
California has severe water problems and grows a significant percentage of our food - especially fruits and veggies.
http://www.slate.com/articles/healt...alifornia_grows_all_of_our_fruits_and_vegetables_what_would_we_eat_without.html
But they also have a large population and a serious drought.
http://www.foxnews.com/us/2015/08/3...1/when-wells-run-dry-california-drought-forcing-some-families-to-live-in-third/
Even the Pacific NW where we joke about how much rain we get - (people don't tan in Orygun - they rust) - about 80% of the state is considered to be in a drought condition, and the PNW in general has had severe wildfire problems this year because of extremely dry conditions in the forests.
Around me, water levels in wells are dropping and have been for years.
The problem is pretty straightforward - it is all about numbers; the numbers of people. The world population keeps growing, which means less water per person. Add to that, the fact that yes, humans do affect the climate, making it worse, with some places facing drought while others face floods. In the PNW we face a "mild" winter this year, which means we won't get much snow, which means our reservoirs will not fill up and the spring melt won't help much.
Photo of one of our major reservoirs normally:

What it looks like now:
