The only meddling with nature that went horribly is repeatedly introducing invasive species, then seeing the result after a short time.

And the part that isn't discussed at all, of course, is that that happens all the time in nature.

Of course the solution to climate change is humanity taking control of the climate. But the problem with that is equally simple: warming is inconvenient, but generally helps everyone. Cooling, on the other hand, ... or even merely stopping the warming.

For example, changes in Himalayan glaciers melting could affect the timing and reliability of water supplies in parts of the world, especially the Ganges Basin, particularly during dry periods. 700 million people depend on that water, not even counting the fact that the other side of the same mountain is the majority of Pakistan's water supply. Massive people displacements are likely to be unavoidable.

Note that glacier melting will stop, after a balancing period, not because it starts cooling. Merely keeping the temperature level will do that.

Large areas of the planet and very significant parts of the human population depend on global warming continuing.