széndioxidciklusban

The carbon cycle, or széndioxidciklusban in Hungarian, describes the continuous movement of carbon atoms between the Earth's atmosphere, oceans, land, and living organisms. This cycle is fundamental to life on Earth, regulating climate and providing the building blocks for organic matter. Carbon exists in various forms, including carbon dioxide (CO2) in the atmosphere and dissolved in oceans, organic compounds in living and dead organisms, and carbonate rocks.

The primary processes driving the carbon cycle include photosynthesis, respiration, decomposition, combustion, and the exchange of carbon between the atmosphere and oceans. Plants absorb CO2 from the atmosphere through photosynthesis, converting it into organic compounds. Animals obtain carbon by consuming plants or other animals. Respiration by plants, animals, and microorganisms releases CO2 back into the atmosphere. Decomposition of dead organic matter also returns carbon to the soil and atmosphere.

Human activities, particularly the burning of fossil fuels and deforestation, have significantly altered the natural carbon cycle. These activities release large amounts of stored carbon into the atmosphere, primarily as CO2, leading to an increase in atmospheric greenhouse gas concentrations and contributing to global climate change. Understanding and monitoring the carbon cycle is crucial for addressing environmental challenges and ensuring the sustainability of Earth's systems.