It's hard not to be skeptical.<p>If only there was a way to solve climate change with carbon capture that was low tech, easy to do, simple to understand, didn't pose any long term side effects and pretty cheap to do.<p>Oh, and it can solve <i>all</i> the CO2 emissions you could ever want, so you know, you don't even have to make significant changes to your industry or way of life, because your emissions are pretty much flat out neutralized by this one simple thing.<p>Sounds perfect right?<p>Sounds like a silver bullet.<p>...but, silver bullets don't exist.<p>So, I can <i>guarantee</i> it's not that simple. Maybe it's another useful tool to help tackle climate change, probably with more research as to how to actually works. ...but, I think anyone who's excited by this needs to calllllmmm the F down, because this idea has been around for quite a while, and no one is using it; so I suspect there are some things that still need to be figured out like:<p>- do the benefits scale linearly, or is it a logarithmic curve (like most things)?<p>- can you actually <i>measure</i> the amount of carbon captured to prove its working?<p>- does it have any side effects on the ecosystem?<p>- does it have any impact on, you know, the <i>farms</i> you're putting it on?<p>- does their model (which is all they did, create a Matlab model) actually work in the real world?<p>- how often do you have to do it for it to stay effective?<p>It's complicated right.<p>I mean, sounds promising... but this:<p>> The simple act of sprinkling rock dust—an abundant byproduct of mining—on farmland could capture 45% percent of the carbon dioxide required to help the UK meet its 2050 net-zero targets.<p>Is just idle wishing the problem away. It might. It might not. There's a model that suggests it might.<p>I'm not convinced we should be sprinkling rock dust over the entire country quite yet.