from the urls-we-dig-up dept
The world is covered in water, but not all of it is actually safe to drink. Usually, the problem is that it's too energy intensive (and thereby costly) to purify it. It's a long-standing problem, but there's been some progress. Here are just few quick links on potable water supplies.
- Banana peels have actually been proven to effectively filter out various harmful metals from water. They don't kill bacteria, though, and stuffing them into Brita bottles probably won't work, either. [url]
- Desalination should be a "last resort" for water purification, but it's been getting more widely used despite its costs. Desalination technology is improving, but it still uses a lot of energy. [url]
- Perhaps the real last resort, though, should be towing an iceberg to where you need fresh water. A 30 million ton iceberg could provide enough drinking water for about about 500,000 people -- for a year. [url]
- A bunch of companies are promoting water conservation with the slogan: "Wasting Water is Weird." Will quirky viral videos help people to conserve water? [url]
- To discover more related links on stuff we eat or drink, check out what's brewing on StumbleUpon. [url]