In the carbon cycle, the impact is obvious. Think about it: one just recycles carbon through photosynthesis with at worse no net change in the amount of carbon

In the carbon cycle, the impact is obvious. Think about it: one just recycles carbon through photosynthesis with at worse no net change in the amount of carbon in the system, while the other is based on literally digging industrial amounts of carbon out of the ground to introduce it into the system.