Happy to hear that there are still such efforts (conferences such as the one described below) underway and that they are inclined to the audacious. Thanks to Brad Plumer, at the New York Times, for this report:
Kelp Farms and Mammoth Windmills Are Just Two of the Government’s Long-Shot Energy Bets
Thousands of entrepreneurs gathered near Washington this week for an annual government conference. On the agenda: unusual solutions to major clean-energy problems.
A kelp forest off Mexico’s Pacific coast. A project presented this week at an energy research conference proposes using tiny robots to farm seaweed for use in biofuels. Credit Reinhard Dirscherl/ullstein bild, via Getty Images
Off the coast of California, the idea is that someday tiny robot submarines will drag kelp deep into the ocean at night, to soak up nutrients, then bring the plants back to the surface during the day, to bask in the sunlight.
The goal of this offbeat project? To see if it’s possible to farm vast quantities of seaweed in the open ocean for a new type of carbon-neutral biofuel that might one day power trucks and airplanes. Unlike the corn- and soy-based biofuels used today, kelp-based fuels would not require valuable cropland. Continue reading

























