How do humans affect the atmosphere?
The greatest amount of scientists are convinced that human activity is adjusting the makeup of the atmosphere by enlarging the concentration of greenhouse gases (GHGs). Greenhouse gases form naturally in the atmosphere and their existence ends in what atmospheric scientists named the greenhouse effect. It is important to realize that the greenhouse effect is what keeps the earth warm enough to have life on it. The most recent concern is directed at an enhanced greenhouse effect, one that would put more heat-absorbing gases into the atmosphere, thereby increasing global temperatures. The enhanced greenhouse effect has been linked to increased GHG emissions from human activities.
Nitrogen (78%) and oxygen (21%) make up 99% of the dry atmosphere. The all the other gases, including GHGs, are called "trace" gases due to the low amount of them in the atmosphere.
The recent notice given to the greenhouse effect and global warming is from the noted increases in aamountss of some of the greenhouse gases because of human activity. Of exceptional attention are water vapor, carbon dioxide, methane, nitrous oxide, chlorofluorocarbons, and ozone. With the exception of chlorofluorocarbons, all of these gases exist naturally and are also produced by human activity.
The recent notice given to the greenhouse effect and global warming is from the noted increases in aamountss of some of the greenhouse gases because of human activity. Of exceptional attention are water vapor, carbon dioxide, methane, nitrous oxide, chlorofluorocarbons, and ozone. With the exception of chlorofluorocarbons, all of these gases exist naturally and are also produced by human activity.
Water vapor is the most important GHG on the planet. Dissilmilar to almost all of the other atmospheric gases, water vapor is thought to be a 'variable' gas; that is, the quantity of water vapor in the atmosphere can change a lot depending on the location and source of the air. For instance, over the tropical oceans, water vapor might be 4% ofthe whole volume of all the gases. Meanwhile, at a desert or maybe over a high altitude, vater vapor might not even be there. That is because it absorbs heat consistently. Most people don't consider water vapor when talking about causes of global warming. Why? This is mostly because human activity is not instantly changing water vapor content. Still, human activities do directly impact other GHGs. In spite of the fact other GHGS are by themselves more valuable than water vapor, making more of their amount might affect global warming in huge and easily mesured ways.
Carbon dioxide is thought of as the most important GHG that is influenced by human activites. Scientific measurments show indisputable worldwide increase that is quick and increasing. This escalte comes from mostly the burning of fossil fuels (motorized vehicles, electric power plants, and homes heated with gas or oil) and the burning or opening of forested land for agriculteral reasons.
Methane is mostly a result of natural biologic procedure, but the productioni can be increased by human activities. It is released from the decompose of organic matter in drenched soil. Some examples would be wetlands and rice paddies. From the digestive area of grazing animals (like cows and ruminants). The inclusions from human activities incorporate the growth of the amount of rice agriculture, the quantity of livestock, the enlarged amount of landfills, and leakage from natural gas pipelines.
Chlorofluorocarbons (CFCs) are not from a natural place; they are from only human activities. CFCs have been used in history bwidely as refridgerants in air conditioners, refridgerators, freezers, and heat pumps. They are used in electronic manufacturing and are found in foam plastics. These compounds remain in the atmospher for a long time, even though CFC making has been decreased significantly; we will see theeffects of CFCs for many years.
Nitrous oxide occurs naturally also. It is a GHG, and it's amount had grew very much in recent years due to human activity. It is released from coal-burning power plants and can be emmited from the breakdown of chemical fertilizers in soil.
Like the others, ozone is a greenhouse gas. Ozone has good and bad things, and it depends on where it is located. Ozone in the stratosphere is a good things while ozone in the troposphere is a bad thing. Ozone can be a big component of urban smog if it is in the troposhpere. Urban smog damages crops and aggravating inhalatioin while enhancing the greenhouse effect.
The amount of the GHGs mentioned above are increasing in numbers. But in recent yyears, CFCs are being removed largly and their amount in the atmosphere has decreased. The emmisions are not consistenly being sent out worldwide. Most of the releases come from further developed countries, where power generation, power consumption, and living standards are greatest.
So the result of all of this equals:
So the result of all of this equals:
- global warming
- asthma and other lung problams
- agricultural problems
- and poultion