How have humans impacted the carbon cycle?

What exactly the "carbon cycle" should look like might be debatable. Wasn't is much different BEFORE the formation of our current "fossil fuels"? Didn't their formation "impact" the carbon cycle of the time?

In any case, the impact of human existence over time - and especially in recent centuries - has been to release much of that solid and liquid-contained carbon into the atmosphere (and then back into the land and hydrosphere) in the forms of carbon dioxide, carbon monoxide and particulate material.

Whether that "impact" is significant, good, bad, or indifferent is another question. A change will always happen, whether we like it (or cause it) or not.

Humans have impacted the carbon cycle primarily through the burning of fossil fuels, deforestation, and industrial activities. These activities release large amounts of carbon dioxide into the atmosphere, contributing to the greenhouse effect and global warming. Additionally, land-use changes such as urbanization and agriculture alter the natural carbon cycle by affecting carbon storage in soils and vegetation.