What is Global Warming?
Global warming refers to the long-term increase in Earth's average surface temperature, primarily due to human activities that result in the buildup of greenhouse gases (GHGs) in the atmosphere. temperature of the Earth has risen by 1C.
The global average temperature at the Earth's surface has increased by 0.74 0.18 C (1.33 0.32 F) over the last hundred years. The Intergovernmental Panel on Climate Change (IPCC) concluded that, "most of the increase in global average temperature since the mid-20th century is likely caused by increasing concentrations of greenhouse gases resulting from human activities" via the greenhouse effect. However, there are still some scientists who do not agree with some of the conclusions put forward by the IPCC.
Causes of Global Warming
Rising global temperatures are expected to cause not only changes in precipitation amounts and patterns, but also other changes such as sea level rise and the intensity of extreme weather events. Other effects of global warming include the impact on crop yields, the disappearance of glaciers, and the extinction of many types of animals.
* Â The Cause of Greenhouse Effect
- Earth's energy source is the sun, and most of this energy is in the form of shortwave radiation, including visible light. When this energy reaches the earth's surface, it changes from light to heat, thereby warming the earth. The earth's surface absorbs some of the heat and reflects the rest. Some of this heat is radiated into space in the form of long-wave infrared radiation. However, some of the heat remains trapped in the Earth's atmosphere due to the swelling of greenhouse gases such as air vapor, carbon dioxide and methane which absorb the radiation waves. These gases absorb and reflect waves emitted by the earth, causing heat to be stored on the earth's surface. This situation will continue to occur, and the global annual average temperature will continue to increase.
- Global warming is mainly caused by the greenhouse effect, greenhouse gases like Carbon Dioxide, Ozone, Methane, and Water Vapor play a crucial role.
* Â Human Makes Pollution
Human activities have increased the usage of fossil fuel, deforestation, and industrial processes, all those actions produce substantial amounts of Carbon Dioxide, Methane, Nitrous oxide, and other greenhouse gases that traps heat and causing a warming effect on the planet.
Feedback effect
