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Shred your money maker
Shred your money maker

BOGOTA — Colombia’s National University is working on recycling used banknotes, by processing them into an absorbent material that cleans water and air of pollutants, El Espectador reports.

Some 169 million banknotes in Colombia are replaced every year. And the University’s chemical engineering department found that shredding them creates “activated carbon,” a crystalline substance able to absorb the chemical waste produced by a range of industrial and manufacturing processes, including — wait for it — the production of banknotes.

The conversion process involves mixing the shredded notes with urea, a chemical compound found notably in urine. María Paula Franco, one of the chemists experimenting with the process, observed that because Colombian banknotes are made of cotton-derived fiber, they could return to the earth as degradable compost.

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Geopolitics

How South American Oceans Can Sway The U.S.-China Showdown

As global rivalries and over-fishing impact the seas around South America, countries there must find a common strategy to protect their maritime backyards.

RIMPAC 2022

Juan Gabriel Tokatlian

-Analysis-

BUENOS AIRES — As the U.S.-China rivalry gathers pace, oceans matter more than ever. This is evident just looking at the declarations and initiatives enacted concerning the Indian and Pacific oceans.

Yet there is very little debate in South America on the Sino-American confrontation and its impact on seas around South America, specifically the South-Eastern Pacific (SEP) and South-Western Atlantic (SWA). These have long ceased to be empty spaces — and their importance to the world's superpowers can only grow.

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