Physics, asked by mrinmai1, 1 year ago

how are human activities contributing to global warming . plz urjent

Answers

Answered by Anonymous
5
Throughout most of human history, and certainly before human beings emerged as a dominant species throughout the world, all climate changes were the direct result of natural forces like solar cycles and volcanic eruptions. Along with the Industrial Revolution and an increasing population size, humans began altering climates with ever growing influence, and eventually surpassed natural causes in their ability to change climate.

Human-caused global climate change is primarily due to the release, through our activities, of greenhouse gases.
Greenhouse gases are released into the air, where they persist for a long period at high altitude and absorb reflected sunlight. They then warm the atmosphere, the surface of the land, and the oceans. Many of our activities contribute greenhouse gases to the atmosphere.


FOSSIL FUELS CARRY MUCH OF THE BLAME


The process of burning fossil fuels releases various pollutants, as well as an important greenhouse gas, carbon dioxide. We know that the use of gasoline and diesel to power vehicles is a large contributor, but overall transportation only accounts for approximately 14% of total greenhouse gas emissions. The single largest culprit is electricity production by coal, gas, or oil-burning power plants, with 20% of all emissions.
It's Not Only About Power and Transportation
The various industrial processes that use fossil fuels are also to blame.
For example, large quantities of natural gas are needed to produce the synthetic fertilizers used in conventional agriculture.
Just the process of extracting and processing coal, natural gas, or oil involves the release of greenhouse gases - those activities make up 11% of the total emissions. This includes natural gas leaks during the extraction, transportation, and delivery phases.

Just as we create greenhouse gases, we can also take steps to reduce those emissions. It should becomes clear from reading this list that a whole suite of solution is necessary to tackle climate change, beginning with the switch to renewable energy. Responsible stewardship also means encouraging sustainable agricultural and forestry practices.
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