EDITORIAL
To improve the quality of the air and get rid of CO2 so harmful in the atmosphere, the plants are a great help. Among them, one could make the difference: the alga, which combines its photosynthesis capabilities with rapid growth. Jean-Pierre Montanay, who examines each morning on Europe 1 what could look like the world of tomorrow, looked Tuesday at this solution to global warming.
"Long before the trees, millions of years ago, the algae were the first organisms to develop photosynthesis - in other words, the alga captures the ugly carbon dioxide and transforms it into biomass, so it develops through As the seaweed, in addition, has the good idea to grow very quickly, it absorbs even more CO2.Good news for the quality of the air.That's why Kyanos and Fermentalg, two startups based in Toulouse and in Bordeaux, specialized in the cultivation of seaweed, bet on these "fantastic" microorganisms to reduce the warming and the pollution of the air.
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A carbon well filled with seaweed is already operating in Poissy, near Paris, to clean the atmosphere along a road taken every day by 23,000 vehicles, while algae trees will be installed in Toulouse. A cylinder four to five meters high, filled with water, transparent to see the algae that are inside. Everything will be topped with plants, to give a little vegetal side.
Ingenious eco-system
Microorganisms will literally suck polluted air to grow. CO2 of course, but also fine particles ... because the seaweed is endowed with a species of catalytic converter. Once the algae are large enough, they will be collected to serve as fertilizer to boost the vegetation around. An ingenious eco-system and virtuous circle, which captures as much CO2 as a hundred real trees.
The first cylinders should be installed from the beginning of 2020 in Toulouse. The eyes will then be focused on the Pink City to know if the results will live up to expectations. In Poissy, the first assessment of the carbon sink is very encouraging. Large European cities undermined by CO2 pollution and may well, tomorrow, adopt these "magic" trees to stop suffocating.