Northern Institute of Applied Climate Science
[2024-01-31 06:19:57]
Carbon is a rich element of life on Earth. Carbon cycle is carbon exchange between all the constituents of the earth - atmosphere, sea and river, rocks and sediments, and creatures.
Photosynthesis and breathing processes are the foundation of the carbon cycle. In photosynthesis, plants produce carbohydrates (sugar) and oxygen (O 2) using energy from the sun and carbon dioxide (CO 2) gas from the atmosphere. As plants grow, carbohydrates are stored (or isolated) in their biomass (biological parts such as leaves, stems and roots). Storage carbohydrates can be used as energy. In order to use energy, it is necessary to decompose breath carbohydrates and release carbon dioxide into the atmosphere. The rate of carbon dioxide production varies. For example, decomposition - fungi and microorganisms decompose carbohydrates to collect energy - is a slow but important way to return carbon to the atmosphere.
Carbon cycle involves carbon flow or flow between different Earth systems. Objects or processes that absorb and store carbon are called absorbers and objects or processes that emit carbon faster than carbon are called sources. For example, a healthy plant absorbs carbon dioxide in the air and stores it in new leaves and roots, even larger stalks, so it is carbon sink. However, when the amount of carbon dioxide emissions exceeds the intake amount, the plant becomes a carbon source. This happens when plants are eaten and animals use their carbon as energy, or when carbon dioxide is returned to the atmosphere by decomposition. Or fire
Humans have a big impact on the global carbon cycle. Fossil fuels, including coal, petroleum and natural gas, contain a large amount of carbon that has been formed for millions of years in the decomposition of plants and animals. When burning fossil fuels, large amounts of carbon dioxide and other greenhouse gases (GHG) are released into the atmosphere faster than natural processes. Changes in land use, especially deforestation, also resulted in an increase in atmospheric carbon dioxide levels. Although plants absorb some extra carbon dioxide, most greenhouse gases remain in the atmosphere and cause climate change.
Scientists around the world are working to determine the amount of carbon that is accumulated in various places on the earth and the movement between them. Carbon can be measured using two different methods. One way is to measure the flow of carbon dioxide in the air using satellites and measuring instruments. Another way is to measure the amount of carbon present in the sample from plants, trees, soil and other ingredients and extend it to a regional or global environment. Using these methods, scientists were able to determine the approximate amount and flux involved in the global carbon cycle (see above). However, due to the complexity of the systems involved, the exact dimensions of many sources and sinks remain unknown.
Dr. Judith Curry, climate scientist Dr. Judith Curry and retired financial institution Nicholas Lewis, of Georgia Institute of Technology, Institute for Global Atmospheric Sciences, reported that in their study 66 ° C (range of 5 to 95% uncertainty range) ECS We reported estimates. : 15 to 2.7 ° C). Why is their model not as hot as the global temperature model of IPCC? Their models are: (1) taking into account historical temperature and marine temperature trends since the middle of the 19th century, and (2) after 1990, the atmospheric ozone and aerosol depend on the global temperature trend Has it affected you?
Articles written by John Hogan, director of the Science Writing Center of the Stevens Science Institute, have reported two recent reports that they reject climate change climate change "modernists" from the viewpoint of human coping capacity I analyze it. Using it is basically a new term. "It has brought longevity to billions of people, reduces extreme poverty, and has given the majority of people labor power to afflict and ruin the soul from a (short)