At UC Berkeley, scientists are tinkering with something that looks unremarkable — a fluffy yellow powder. But don’t let appearances fool you. This powder could be a key weapon in the fight against climate change. The material, known as COF-999, has the ability to trap carbon dioxide — the greenhouse gas driving global warming — far more efficiently than even trees. In fact, just half a pound of the powder can do the work of a large tree over the course of a year. The powder is lightweight and porous, capturing CO in its microscopic holes. Unlike other similar materials, it can repeat the proce…
