Is all of earths carbon dioxide supply constantly being used by organism?

No, all of Earth's carbon dioxide supply is not constantly being used by organisms. While organisms do play a role in the carbon cycle by incorporating carbon dioxide into their bodies through processes like photosynthesis or respiration, there are other sources and sinks of carbon dioxide that contribute to its overall balance in the atmosphere.

Carbon dioxide is continuously exchanged between the atmosphere, land, and oceans. Geological processes, such as volcanic eruptions and weathering of rocks, release carbon dioxide into the atmosphere. Additionally, human activities like the burning of fossil fuels and deforestation have significantly increased the amount of carbon dioxide in the atmosphere.

While organisms, especially plants and some microorganisms, take up carbon dioxide through photosynthesis, they do not utilize the entire atmospheric supply of carbon dioxide. The balance between sources and sinks of carbon dioxide determines its concentration in the atmosphere.

We sure wish it were! It is a major contributor to global warming as CO2 increases in the atmosphere.

You are correct. The increased concentration of carbon dioxide in the Earth's atmosphere is a major contributor to global warming and climate change. Through the greenhouse effect, carbon dioxide traps heat in the atmosphere, leading to a rise in temperatures on our planet.

Human activities, such as burning fossil fuels for energy, deforestation, and industrial processes, have significantly increased carbon dioxide emissions, disrupting the natural carbon cycle and causing the levels of CO2 in the atmosphere to rise to unprecedented levels in recent history.

This increase in carbon dioxide and other greenhouse gases is leading to various adverse effects, including rising global temperatures, melting ice caps and glaciers, sea-level rise, changes in precipitation patterns, more frequent and severe weather events, and impacts on ecosystems and biodiversity.

Efforts to reduce carbon dioxide emissions and transition to cleaner and more sustainable sources of energy are crucial in mitigating the impacts of global warming and climate change.