The 1.8 cubic meter sci-fi movie box shown is a bioreactor that needs to be filled with algae and can extract both carbon dioxide from the air and four hundred trees. At least that's what the company says.
It's not a question that relatively inexpensive algae are capable of carbon sequestration, since a similar bioreactor has already been tested on the International Space Station, but it's worth remembering that many of these bioreactors would be needed to mitigate the effects of climate change on our planet.
According to the UN, the trees need to be planted on one billion hectares to keep warming below 1.5 degrees Celsius by 2050. That translates to approximately 1,000 trees per hectare, a total of 1 billion parts that could be replaced by 2.5 billion bioreactors.
A Hypergiant spokesman revealed that he would soon make the bioreactor's projects public, so anyone could freely upgrade his system.
source: Hypergiant Industries