Solar Energy Meet Fuel
Cells Via Photosynthesis
08.01.2008 | 04:17 PM •
MIT’s Daniel Nocera reportedly has found the holy
grail to make solar energy truly useful 24/7:
man-made photosynthesis. The biggest problem with
solar energy is that the energy stops flowing when
the sun stops shining. The usual solution is to store
the electicity in batteries which wear out over time
and are caustic for the environment. Nocera’s
solution was arrived at by studying nature, plants in
particular. How do plants get their energy when the
sun goes down? Through the process of photosythesis.
Nocera’s breakthrough was finding a way to convert
water into its components, hydrogen and oxygen, via
catalysts that can operate at room temperature and
pressure using the electricity produced by the solar
cells. The separated hydrogen and oxygen can then be
combined in a fuel cell to deliver electricity when
the sun is down. The result is clean, self-sustaining
energy! Read all about it
here. This man deserves a
Nobel prize!
Bees, Like Humans, Are
Overworked
06.05.2008 | 09:29 PM •
It was called
Colony Collapse Disorder,
CCD, and was a description of the alarming
decimation of bee colonies throughout the U.S.
and the world. About a year ago we were very
obsessed about it, fearful that the bees' demise
was the canary in the coalmine of the
irreversibility of global warming. What happened
to that story? Was it just one of many
soundbites of hype that briefly occupied our ADD
minds? Or was it not as bad as we expected?
The answer is that we do have ADD and the bee losses
are bad, but perhaps not as bad as expected. A virus
is to blame for much of the bees' demise, but also a
kind of
karoshi, overwork. Now to the part I
did not know anything about: the business of
pollination. Did you know that bee pollination is a
$15 billion dollar industry in the U.S., that
approximately 1,000 commercial beekeepers own 90% of
the country's 2.4 million bee colonies, that far more
lucrative than honey production is the pollination of
almond trees, a $1.9 billion dollar business
(compared to honey's paltry $160 million and double
even Napa Valley's wine production)? As food prices
increase and the need to pollinate more and more
acres of cotton, fruits, vegetables, and nuts, the
value of the beekeeper's services increase. Like the
chickens overfed and forced to live on 20-hour days
so that they lay more eggs, honeybee colonies are
driven around the country from one crop to the next
to provide their indispensable services. This week
almonds, next week, blueberries, the week after,
alfalfa, and so on. In short, the bees are
overworked, dropped into neverending fields of
pornographically titillating flowers, and on top of
this many are given hormones to stimulate their busy
bee behavior so that they gather (and disseminate)
more and more pollen. It's a fascinating topic, and I
could go on, but you'd better get it from its
source
instead. If our planet is to survive, bees, too,
will need shortened work weeks, guaranteed
vacations, and much less stress.