It looks like they're working on the Berkeley Pit: https://www.mtpr.org/post/montanas-berkeley-pit-water-treatm...

But yeah the developing countries do deserve it. However, it remains a complex political issue. How do you declare or enforce regulations in countries outside of our jurisdiction? You can try to convince those countries it's worth it but you can't force them to.

Tariffs and sanctions. "Tax carbon or you can't trade with us. We'll freeze your assets in our banks. We'll get our allies to do the same thing. Any company that trades with you can't do business here." It works to force compliance on many other issues.

But it only works if we've made efforts to fix our own carbon emitting economies. Before anyone makes the currently popular "why aren't you telling China and India to stop emitting" argument

> But it only works if we've made efforts to fix our own carbon emitting economies

Climate denialism in developed countries has many forms. Some of them include:

1. It's not happening

2. It's happening but it's natural

3. It's happening and it's because of human activity but it'll cost too much to fix it.

4. We could fix it but we'd be outcompeted by everyone else who doesn't. So let's not.

Tariffs and sanctions are to address #4. Rich countries absolutely must fix their economies, no question about it.