There are certainly ecological costs, but in the long run, Earth's life will only survive if an advanced species like ours is able to transport it off the planet before the sun expands and boils away the ocean and atmosphere, in approximately 800 million years.

Fortunately, the rockets for that will be helped along with the GPU capacity to run rocket simulations on. GPUs not being used to run LLMs can be used instead for physics simulations to help make those rockets work.