Exaquest Carbon

Exaquest Carbon has been been awarded Phase 1 of The Bezos Earth Fund Greenhouse Gas Removal Ideation Prize!

Open Source

Carbon Dioxide Removal

for Climate Justice!

Exaquest Carbon is a 501(c)(3) non-profit research organization developing open-source carbon dioxide removal (CDR) methods.


Our mission is to develop scalable CDR methods that can be implemented by small and large operators worldwide.


See our blog for news and details: www.biosink.org

Phase 1 Completed : Bio-Dry

We have completed development of our first project for Dry Storage of Biomass for durable carbon sequestration. The final report is linked here.


This method is now being scaled by Tau Carbon. For details, please visit www.taucarbon.com.


BioSink, an all-natural method of CDR, involves collecting dead, waste wood; and bringing it to a depth of 800 ft in the ocean. In minutes, the hydrostatic pressure at that depth causes wood to be waterlogged and sink naturally, more than ten thousand feet, to the seafloor below.


Once at the seafloor, carbon that was captured by the wood stays out of contact with the atmosphere for over 1000 years. The abyssal plains of the ocean floor are 4000 meters deep, remote from human activity, far larger, and far more barren of life than the Sahara desert.


We will use conventional transport infrastructure to implement this low-tech, safe and legal process. The re-emission of CO2 in this method is calculated to be only 2.3%.


In addition, we will develop a platform for training ocean fishing operators worldwide to sink locally sourced waste forest and farm biomass. Participation by small and large operators will increase the scale of our CDR effort to gigatons of CO2 annually, and provide a sustainable alternative income to fishing.

Phase 2 Started : BioSink

BioSink Process

At 800 ft depth, wood becomes waterlogged and sinks

Near the surface,sea plants and animals are plentiful

At 12000 ft, Titanic haunts the barren seafloor.

At 1000 ft depth, the ocean is dark,

with few animals and no plants

6000 ft: some whales dive this deep, for minutes

3000 ft deep, zooplankton hide

from predators during daytime


Exaquest Carbon

E-mail: info@exaquest.org

Nonprofit 501(c)(3)

EIN: 84-4848621


Exaquest Carbon