I think this is one thing that frustrates me about these conversations, they are still very Americentric. What matters is that we reduce atmospheric CO2. Every major country has the technical and economic means to invest and innovate on clean technology and CCS systems (because honestly we need negative production of CO2, not zero). You can't just rely on America to save everyone on the planet. I don't care if it comes from China, Germany, France, Australia, India, or wherever. It just matters that it gets done. We already know who's to blame. It's like a fire that's started and we're arguing about who's job it is to put out. This isn't spilt milk. The longer we wait the more damage is done and with compounding interest. We can talk about blame and solve the issue but this can't just dominate the conversation. Everyone needs to fix the issue. Full stop. This is because everyone is in danger.