Remember the parr where it took basically ecoterrorism to get the point across?

There are throwaway mentions of newer warp drives having solved the issue. The nacelles on the Intrepid-class moving is one of the methods.

Just like climate change and the damage we’re doing to the planet!

All warp caused damage, but they agreed to have a speed limit of warp 5 to manage the damage caused. It was still bad, but space had a chance to repair itself from that amount.