Why are many scientists concerned about adding more carbon dioxide to the atmosphere?

Many scientists are concerned about adding more carbon dioxide (CO2) to the atmosphere because it contributes to climate change by enhancing the greenhouse effect, leading to rising global temperatures, altered weather patterns, and increased frequency of extreme weather events. High levels of CO2 also result in ocean acidification, which negatively impacts marine ecosystems. Furthermore, the accumulation of CO2 disrupts the balance of natural carbon cycles, exacerbating environmental degradation and threatening biodiversity. Overall, these changes pose significant risks to ecosystems, human health, and food security.