The Earth's biosphere, which includes all living organisms, is essential for maintaining the planet's habitable conditions from "summary" of Earth System Science by Timothy Lenton
The biosphere of Earth is a complex web of living organisms that interact with each other and with the physical environment. This interconnected system plays a crucial role in maintaining the planet's habitable conditions. Without the biosphere, Earth would be a barren and lifeless rock, unable to support the diverse array of life forms that currently inhabit it. One of the key functions of the biosphere is to regulate the composition of the atmosphere. Through processes such as photosynthesis and respiration, plants and other organisms help to maintain the balance of gases like oxygen and carbon dioxide. This balance is essential for supporting life on Earth, as many organisms rely on these gases for survival. In addition to regulating the atmosphere, the biosphere also plays a role in regulating the climate. For example, forests help to absorb and store carbon dioxide, which helps to mitigate the effects of climate change. Similarly, wetlands and other ecosystems play a crucial role in regulating the water cycle, helping to prevent floods and droughts. Furthermore, the biosphere provides essential ecosystem services that support human well-being. These services include things like pollination, soil formation, and nutrient cycling. Without these services, our agricultural systems would collapse, leading to food shortages and other problems.- The biosphere is a vital component of Earth's system, playing a crucial role in maintaining the planet's habitable conditions. By understanding and protecting the biosphere, we can ensure a sustainable future for both ourselves and the other organisms that call Earth home.
