05.05.2019

# Media

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The Engineer: Mechanical trees capture CO2 passively

"The technology involves discs of sorbent stacked in columns. When a column is fully extended, the discs are exposed to air and capture atmospheric CO2. Once full, the discs are them lowered back into the column where the CO2 is extracted and either sequestered or sold for commercial use."

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28.01.2019

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Nexus Media: Scientists Call for Artificial Trees to Fight Climate Change

"Plants are humanity’s greatest ally in the fight against climate change. Plants soak up carbon dioxide and turn it into leaves and branches. The more trees humans plant, the less heat-trapping carbon pollution in the air. Unfortunately, plants require a lot of water and land, so much that humans might need to find a new ally to help draw down all that carbon. New research from a team of German scientists suggests that artificial photosynthesis could help. Scientists are urging the world to invest in the technology, which remains too costly to be practical."

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19.11.2018

# New Publications

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Siegel, R. (2018): The Artificial Tree

Siegel, R. (2018): The Artificial Tree. In: Mechanical Engineering 140 (11), S. 34. DOI: 10.1115/1.2018-NOV-2.

"Inside Arizona State University in Tempe’s lab sit the parts for an artificial tree, capable of extracting carbon dioxide 1,000 times faster than a natural tree. The research team is methodically transforming the process into a machine through which carbon dioxide doesn’t get turned into fruit or roots or tree trunks, as it does with a natural tree, but simply gets collected by resin in a reversible chemical process. This article takes a closer look at the process."

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08.10.2018

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Quartz: A Swiss startup will turn carbon dioxide into stone—for a price

"One of those technologies is direct air capture. It consists of a machine that extracts carbon dioxide from the atmosphere—like a tree, but super-charged—using fans to drive air onto a surface that has a chemical agent which only reacts with carbon dioxide. Once the carbon dioxide is captured, the rest of the air is released."

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01.10.2018

# Media

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Quartz: Climeworks has opened a third plant capturing carbon dioxide from the air

"In an upcoming report, the Intergovernmental Panel on Climate Change (IPCC) is likely to emphasize the need for a slew of techniques to not just cut emissions, but also suck carbon dioxide from the air. Climeworks, a Swiss startup, today (Oct. 1) opened its third such plant in the world."

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