Green Options

Students at the Massachusetts Institute of Technology’s Sloan School of Management do more than study issues like carbon footprints and energy consumption … they’re ready to tackle such subjects hands-on.

That’s what a group of students, faculty and staff did last week when they put down their laptops and picked up some caulking guns.

Students at the Massachusetts Institute of Technology have won one of six U.S. Environmental Protection Agency (EPA) grants for economically sustainable programs that protect the environment.

Launched by doctoral candidates Amy Mueller and Matt Orosz, the MIT project aims to bring cheap and eco-friendly energy to parts of the world that are now off the grid. The focus of their efforts: Lesotho, in southern Africa, where many people now get their energy from highly polluting diesel generators.

The students’ alternative comes in the form of solar energy. Not the expensive, photovoltaic-dependent kind, but the affordable and easy-to-harness concentrating solar kind. Their energy generator uses a parabolic trough to concentrate the sun’s energy to heat water to provide steam energy as well as hot water.

The battle between CFL and LED bulbs may finally be over thanks to researchers at Cambridge University who have developed a $3 LED bulb that lasts for 60 years. The bulb, which is smaller than a penny, is 12 times more efficient than tungsten bulbs and three times more efficient than fluorescent bulbs.

As college students across the U.S. begin heading back to school, some will be returning to campuses that are greener than most.

According to the Princeton Review’s new Green Ratings for institutions of higher learning, 11 colleges stood out from the national field of 534. All 11 earned a rating of 99, the highest score possible in the Princeton Review’s new tally.

So which schools are tops in all things green?

Across the U.S., researchers, startup companies and investors are exploring the potential of creating large amounts of green, renewable fuel from the humblest of sources: algae.

If you think the energy/food potential for hemp is underutilized, wait’ll you get a gander at algae. This little microorganism really packs a punch.

According to The Book of General Ignorance: Everything You Think You Know is Wrong (2006, Harmony Books) (I highly recommend it, by the way — it’s packed with fascinating information and weird insights), algae breathes out more oxygen than all the world’s land-based plants and trees combined. Certain types of algae also deliver a whopping amount of protein and nutrients per farmed acre (20 times more than soy beans, in the case of spirulina).