Why can’t we suck carbon dioxide out of the air?

<p>We may have stopped hearing about the carbon doxide shortage, but its not gone away amd its curiopusly at odds with what we hear about having too much of it in the atmosphere. Laura, Antonia and Ghinwa discuss some chemistry behind separating carbon doxide from other gases, some industries that produce carbon dioxide and why they don't make use of it, buses that run on methane, home-brewed beer and popping candy(!)</p>