How would it affect the carbon cycle if there were no decomposers?

If there were no decomposers, the carbon cycle would be severely disrupted, as organic matter from dead plants and animals would accumulate instead of being broken down. This would lead to a decrease in the availability of carbon dioxide for photosynthesis, negatively impacting plant life and disrupting the entire ecosystem. Additionally, the lack of nutrient recycling would hinder soil fertility, further impeding plant growth. Overall, the absence of decomposers would result in a less balanced and less productive environment.