Deep Squeeze

Organic particles rain from the sunlit surface as marine snow. At abyssal depths (4,000–6,000 m), hydrostatic pressure exceeds 600 atmospheres — physically compressing soft organic matter and squeezing out dissolved nutrients that would otherwise stay locked inside. Deep-sea microbes feast on this pressure-released bounty. Reported July 2026.

Particle rain — 50%organic matter densityDescent speed — 50%sinking rate

Pressure squeezetoggle to compare

Particles squeezed0Microbes fed0Free nutrients0

Marine snow (sinking)Squeezed particleReleased nutrientDeep-sea microbePressure squeeze threshold

Biological pump pathway

600 atm

Abyssal pressure

At 6,000 m depth, water exerts over 600 atmospheres — like having 50 jumbo jets stacked on your palm. This force physically deforms soft organic matter, squeezing out nutrients as if wringing a wet sponge.

10 Gt/yr

Biological pump

The biological pump sends ~10 gigatons of carbon into the deep ocean annually. Pressure-released nutrients sustain the microbial loop that decides how much gets locked away vs. returned to the surface.

Marine snow

Deep ocean food source

The 'snow' drifting from the surface — dead plankton, fecal pellets, mucus strands — is the primary food source for most deep-sea life. Pressure juicing makes it far more nutritious than scientists had modeled.