Szénciklusban

Szénciklusban refers to the carbon cycle in Hungarian. The carbon cycle is the biogeochemical cycle by which carbon is exchanged among the biosphere, pedosphere, geosphere, hydrosphere, and atmosphere of the Earth. It is one of the most important of the biogeochemical cycles. In the Earth's biosphere, carbon is primarily found in plants, animals, and microorganisms. In the pedosphere, it is stored in soils as organic matter. The geosphere contains carbon in rocks and fossil fuels. The hydrosphere, encompassing oceans, lakes, and rivers, holds dissolved carbon compounds. The atmosphere contains carbon in the form of carbon dioxide and methane.

The carbon cycle is driven by a variety of processes. Photosynthesis by plants and other photosynthetic organisms removes carbon dioxide from the atmosphere and converts it into organic compounds. Respiration by living organisms releases carbon dioxide back into the atmosphere. Decomposition of dead organic matter by microorganisms also releases carbon dioxide. The combustion of fossil fuels and biomass is a significant anthropogenic source of atmospheric carbon dioxide. Over geological timescales, carbon is exchanged between the atmosphere and the Earth's crust through processes like volcanic activity and the formation and weathering of rocks.

Human activities, particularly the burning of fossil fuels and deforestation, have significantly altered the natural carbon cycle, leading to an increase in atmospheric carbon dioxide concentrations and contributing to climate change. Understanding the szénciklusban is crucial for comprehending Earth's climate system and developing strategies to mitigate the impacts of global warming.