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Mitosis
dendroica:

clearscience:

freshphotons:

"Of the 118 elements that make up everything—from the compounds in a chemists arsenal to consumer products on the shelf—44 will face supply limitations in the coming years. These critical elements include rare earth elements, precious metals, and even life essentials like Phosphorus. Research into more abundant alternatives, more efficient uses, recycling and recovery will help mitigate risks and move industry us towards sustainable supply chains." Via.

A while back Clear Science used the example of tellurium (Te, element 52) to illustrate how obtaining enough of a specific material can be challenging.

One reason phosphorus is getting depleted is that we waste so much of it as fertilizer runoff from farms and lawns.
detournementsmineurs:

"La Nature" d’Alfons Mucha, bronze doré et argenté (1900), à l’exposition "Paris 1900" au Petit Palais, Paris, mai 2014.