What human activity does not affect the Earth system?

It's challenging to identify any human activity that does not affect the Earth system in some way, as virtually all actions, from breathing to industrial processes, have environmental consequences. Even seemingly benign activities, like walking in nature or gardening, can influence local ecosystems. However, activities that are minimally invasive, like quiet contemplation in a remote area, may have negligible immediate impacts on the broader Earth system. Ultimately, human interactions with the environment are interconnected and often lead to both direct and indirect effects.