Algae – The Front Line in the Battle Against Global Warming

05.25.2010

visibleearth.nasa.gov

Blooms of algae created by pumping nutrients into the ocean can suck up at least ten times more carbon dioxide (CO₂) from the atmosphere than was previously thought. But the findings lend no support to controversial schemes to encourage such blooms in order to reduce global warming.

After a survey was undertaken on a naturally occurring algae bloom between South Africa and Australia. Scientists found that the vertical stir in the ocean supplies iron and nutrients thus encouraging phytoplankton growth. This growth converts carbon in the air into organic matter reducing the amount of greenhouse gases in the atmosphere.

These findings are sure to spark debate among scientists on weather or not humans should intervene and deposit iron into the ocean to create geo-engineered algae blooms. Geo-engineering has generated intense opposition over the years, as it is nearly impossible to determine the greater affect it may have on a particular eco-system or the environment on a larger scale.

With the information that is available now it seems that these microscopic organisms may have some larger benefit in the battle to slow the effects of global warming. It’s certainly risky business toying with Mother Nature, however with these early positive results more research into this issue is certainly warranted.