I started looking at diatoms in around 1992, absolutely fascinating as they slowly moved themselves around on the surface of the glass microscope slide. Show anyone a goog image search for diatoms and they will be fascinated. They are anywhere that at some time is a wet surface, puddles, among moss on moors, stones in streams, all over the seas and oceans. Diatoms are near the base of the food chain and utterly essential, they cannot be done without and likewise the larger more sophisticated phytoplankton feed on them, all of them are part of the CO2 conversion apparatus.
Seventy percent of the worlds oil and gas is derived from ancient diatomaceous oil trapped / contained beneath the earth and silica is used literally as the base (wafer) for doping and etching to make intergrated circuits and modern day electronics.
This recent article tells us things look bad for diatoms:-
“Most of these studies, however, have been conducted under high-iron conditions. Our study uncovers a widespread cellular mechanism that suggests high CO2 might be particularly problematic for phytoplankton growth in low-iron regions of the ocean.”
I quote … In the largest of these regions, the Southern Ocean, concentrations of available iron are below one trillionth of a gram per liter, approaching the limit supporting life.
quote … The team then initiated a study to investigate the evolutionary relationships of transferrin and phytotransferrin. To their surprise, the proteins were functional analogs whose ancient origins extend to the pre-Cambrian period of Earth history, predating the appearance of modern plants and animals.
“The appearance of phytotransferrin some 700 million years ago is consistent with a time in Earth’s history marked by massive changes in ocean chemistry, and this ancient evolutionary history helps explain why no one has connected ISIP2A and transferrin,” said Miroslav Oborník, a molecular evolutionary biologist from the University of South Bohemia and co-author on the paper.