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18 Μαΐ 2021 · Atmospheric CO 2 levels of between 280 and 350 parts per million created the climate that let humanity build and feed the modern world. The farther we get from those levels, the more we run the risk of disturbing that balance.
The atmosphere today is both a consequence of, and essential for, life. A deep breath. A basic necessity for humans is to breathe oxygen at a sufficient pressure for our respiratory system to work. Complex, multicellular life on Earth needs an atmosphere for either respiration or photosynthesis.
9 Οκτ 2019 · Thus, as humans change the atmosphere by emitting carbon dioxide, those changes will endure on the timescale of many human lives. Earth’s atmosphere is associated with many types of cycles, such as the carbon cycle and the water cycle.
27 Ιαν 2022 · Plants use sunlight, carbon dioxide from the atmosphere, and water for photosynthesis to produce oxygen and carbohydrates that plants use for energy and growth. Rising levels of CO2 in the atmosphere drive an increase in plant photosynthesis—an effect known as the carbon fertilization effect.
10 Φεβ 2020 · So, to put it simply, humans are producing more carbon dioxide. This carbon dioxide is causing more plant growth, and a higher capacity to suck up carbon dioxide.
Earth’s atmosphere does many important tasks for us—it shields us from UV radiation, generates weather, and is the very air we breathe. But its ability to keep our planet warm is what makes the atmosphere so important to climate change.
2 Οκτ 2019 · Earth's atmosphere is essential to life, yet the invisible gases that form our "security blanket" can be hard to grasp. A new five-part series looks at our atmosphere, human impacts on it and ways NASA is studying the changing air we breathe.
