Water
I found the podcast Don Gould – Pure Water 4 All from IT Conversations really interesting.
So, why is water such a problem?
Approximately 76% of earth is water, yet only 2.5% is fresh, and of that over 99% of fresh water is inaccessible (polar ice, etc.) Thus leaves only 0.3% of earth’s water available for all living creatures to share. [...]
Over 1.1 billion people do not have access to safe drinking water (65% in Asia, 27% in Africa). Many have to devote several hours every day to retrieving water and water borne pathogens kill more children that any other cause, making unclean water the biggest threat to world health.
The 250 major watersheds worldwide cross political boundaries of at least two nations. Gould echoes the warning of many economists and scientists: The wars of the 21st century will be fought over water, not oil.
The project, Pure Water for All, is aiming for providing water through cheap and low tech grassroots solutions.
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