I'm incredibly concerned by the inaction, and the direction of the action being taken (Especially by climate activists), but I'll give people credit - at least there is a demand for the first problem to be taken seriously.
We do have the skills for massive amounts of thin film production that's necessary for solar and lithium ion batteries. And somehow, we are massively reducing the cost of wind as we scale to ever larger turbines!
We need to lean into our current tech skills, particularly those that get cheaper as we deploy more of it. That description does not fit nuclear, as it has a negative learning curve for costs.
Don't wind farms actually warm the earth by robbing kinetic energy from the wind (which cools the earth)? I read that local climates actually get warmer where there are huge wind farms
The biggest risk is religious zealots commanding a nuclear arsenal. No, that isn't Iran.
If we can terraform Mars by nuking the poles, maybe we can use nukes to trigger huge volcanic eruptions that will cause global cooling by putting tons of dust into the atmosphere