It’s a dangerous practise that could be going to bring a lot of problems for humanity but here is one that might help farmers and is something to think about.
Constructing a wall high enough to do the same thing as a mountain is not an option but we could use a different technology.
These chimneys are not wildly expensive to build and make cheap electricity but the real benefit would be to farming where even a small increase in rainfall would be a huge benefit. Instead of destroying farmland by digging coal, which is a diminishing energy source, and spending a billion dollars on a railway which would only be for coal movement the Queensland government would do better by looking at alternative investments.
It needs some research into its effect into the upper atmosphere but it could work.