case study - water

LifeStraw is a great examplethat there are poor nations in many continents, especially in Africa. The people are fighting from waterborne disease, and more than 6,000 people, mainly children die each day by cosuming unsafe drinking water.
LifeStraw is an instrument which instantly purifies the water and make it ready to drink. A single personal LifeStraw can process 700 liters of water in a year and usage life is 3 years.
It could be a great sybol for developing Africa and actually aid concerts could be made to provide these life saving gadgets for families to people who need.
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Most poor nations do not have water supply facilities, the lack of environment infrastructure is major obstacle to their development. Especially in rural Africa, the people have to carry water to use buckets and unfortunatly, have to go so far away by walk. Moreover, water in adequate quantities is too heavy to carry.
The Hippo Roller is a heavy-duty plastic drum that can be filled upright, then sealed and rolled like a steamroller across rough terrain. the 90 liters thank weight 200 pounds when full, but the rolling drum has a functional weight of just 22 pounds, so actually anyone can use it.
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