The Azimuth Project
Carbon negative energy (Rev #2)

Carbon negative energy refers to any form of usable energy whose production reduces the amount of carbon dioxide in the Earth’s atmosphere.

Biochar

One source of carbon negative energy is biochar: the creation of gas from wood, leaving behind charcoal which can be buried to sequester carbon.

If you can think of other sources of carbon negative energy, enter information about them here! — John Baez

Photosynthesis

Inasmuch as you can eat sugar, or presumably build a fuel cell to run on it, photosynthesis is one of the oldest carbon-neutral to carbon-negative energy production/storage methods in widespread use today. According to the fossil fuel hypothesis?, even petroleum- and coal-burning processes are powered by ancient deposits of photosynthetically-fixed carbon. More recently, it is also the primary source of raw materials for biochar energy production.

I suppose that may look annoyingly … something. One-up-you-ish? I think it’s good to remember, anyways. — Jesse McKeown