"While our carbon emissions have increased, our planet still absorbs the same amount of carbon dioxide, meaning that there's more in the environment than ever before (cue: global warming).
"That's why a group of Canadian engineers are constructing a wall that sucks carbon dioxide right out of the air. Yep, you read that right. Rather than letting that extra carbon dioxide hang out, these carbon engineers want to reduce the threat of climate change by absorbing CO2 molecules and creating carbon-neutral fuels.
"How does the prototype work? First, a fan in the "air contactor" sucks in air molecules (only 1 in every 2,500 of which is CO2), which pass through the air contactor and come into contact with carbon-absorbent surfaces. Then the carbon molecules react, becoming a liquid that is eventually hardened into solid carbonate pellets (think: tiny white pebbles made of carbon). And, finally, high temperatures melt those pellets to release pure carbon dioxide, which can be used as fuel."
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