Fossil Record Shows Climate Impact on Deep-Sea Life

Govind Tekale

Impacts of climate change are revealed by a 500,000-year fossil study of the deep water of the Southern Ocean.

Photo Source: James St. John (CC BY 2.0)

Deep-sea life depends on marine snow for sustenance and is susceptible to temperature changes.

Photo Source:  NOAA (CC BY 2.0)

Researchers from Princeton and HKU examined fossil records from sediment cores.

Photo Source: James St. John (CC BY 2.0)

The ecosystem structure of the Southern Ocean is stable and has existed for 430,000 years.

Photo Source: Shazz (CC BY-SA 3.0)

With the majority of species yet undiscovered, deep-sea ecosystems are extremely fragile.

Photo Source: Internet Archive

Ecological concerns are associated with ocean-based climate intervention (OBCI) technologies such as mCDR.

Photo source: Tiago Fioreze (CC BY-SA 3.0)

Carbon sequestration through iron fertilization has the potential to drastically change deep sea ecosystems.

Photo Source: Berkeley Lab (CC BY-NC-ND 2.0)

The Southern Ocean acts as a climate change early warning system.

Photo Source: John Turnbull (CC BY-NC-SA 2.0)

The results of the study urge cautious ecological assessments for strategies aimed at addressing climate change.

Photo Credits: Minoru Ikehara