Sama 's Profile

That's 1.3 billion people.

China is in the process of building the world's largest dam on the Yangtze. It's a controversial project expected to displace more than a million people and radically change the ecosystem for the entire region.

he company that makes the LifeStraw, Vestergaard Frandsen, emphasise that it hopes the invention can help to meet the UN's Millennium Development Goals on providing access to clean drinking water.

What first meets the water when sucked up is a pre-filter of PE filter textile with a mesh opening of 100 micron, shortly followed by a second textile filter in polyester with a mesh opening of 15 micron. In this way all big articles are filtered out, even clusters of bacteria are removed. Then the water is led into a chamber of iodine impregnated beads, where bacteria, viruses and parasites are killed. The second chamber is a void space, where the iodine being washed off the beads can maintain their killing effect. The last chamber consists of granulated active carbon, which role is to take the main part of the bad smell of iodine, and to take the parasites that have not been taken by the pre-filter or killed by the iodine. The biggest parasites will be taken by the pre-filter, the weakest will be killed by the iodine, and the medium range parasites will be picked up by the active carbon. The main interest to everyone is the killing of bacteria, and here our laboratory reading tells us that we have a log. 7 to log 8 kill of most bacteria. This is better than tap water in many developed countries.

For those of you considering using LifeStraw™ for outdoor adventures in the continental United States, beware that the common "beaver fever" (Giardia lamblia infection) is caused by an organism with 5 micron spores, which are resistant to iodine.

the lives of people who now die from preventable water-borne diseases that are caused by overcrowding and lack of sufficient money and infrastructure to treat water properly.

Millions of people perish every year because they simply don't have clean water to drink....

n the past 10 years, diarrhoea alone has killed more children than all

the people lost to armed conflict since World War II. Half of the

world's poor suffer from water borne diseases, and more than one billion

designed to address the needs of the more than 1.1 billion people who lack access to safe and clean drinking water. Both products are designed to be sustainable and user friendly: they do not require electricity, batteries or replacement parts.