content: It's not big news because so far it's only a material that catches and releases CO2 in wet or dry air. A machine would have to be made to cycle a sheet of this stuff and remove the CO2. At that point you still have the CO2 in the machine, and something needs to be done with it. Stripping off the oxygen is another step that could be materially, energetically, economically, or environmentally expensive. And then you have to ask how many of these machines you need to really make a difference. If they can be sold as consumer commodities ("Just run this machine and you're carbon neutral! Run two and you can use your minivan guilt free!") AND if they catch on, AND if people are willing to pay the maintenance and energy cost then they could indeed make the human race carbon neutral. If they would have to be built, deployed, and maintained by governments that's much less likely to happen. And so far such a machine hasn't been built. Just the material. And we don't even know if the material can be mass produced or at what cost. Another use exists: as a possible more efficient CO2 scrubber for industry, but again so far this isn't a machine that can do that. tl;dr: It's just some stuff in a laboratory for now.