[MUSIC PLAYING] Water’s an essential resource. It’s something we
all need to survive. Yet, roughly over a
billion people in the world don’t have access to a reliable
source of clean drinking water. Here in Chile, we have
the Atacama Desert, which is the driest
spot on the world. There are places in
which have never been recorded a single drop of rain. At the same time
we have this fog coming from the ocean, which
is a source of fresh water. One technology we’ve been
trying to think about here at MIT together with colleagues
from around the world, is can you actually collect
water droplets from fog? [NON-ENGLISH]. Fog. So this water has been naturally
desalinated by the sun. It’s condensed onto
dust particles. And then what we’re
trying to do is build meshes and
porous structures that will actually collect that
water straight out of the air. [BIRD CHIRPING] In nature, you can see that
the plants with narrow leaves are more efficient in capturing
these small water droplets. A fog collector does
nearly the same. By changing the
size of the holes, and the size of the
fibers, and thinking about the coating
on those fibers, we’ve improved the fog
collecting efficiency by about 500%. With the improved
technology, there are new products come out
of Chile in which people are using for water. In Chanaral, for instance,
former fishermen, they have turned into
agriculture thanks to for water. [NON-ENGLISH] We decided to grow
aloe Vera because it is a plant of the desert and it
requires very little care. This plant has many uses. And we also eat it because
it’s very good for your health. There’s approximately
10 billion cubic meters of fog water available
annually in the Chilean clouds. If we could harvest
just 4% of that, it’s going to be sufficient to
provide their drinking water needs for an entire year. [MUSIC PLAYING]