What are the causes of global warming?

Global warming is a term generally used to describe the average temperature of the Earth's surface since the mid -20th century. The causes of global warming are a matter of some debate, although there is a large extent a consensus between the scientific community, formalized in the intergovernmental panel for climate change that most of the temperature increased since the mid -20th century. Before the mid -20th century, the primary causes of global warming were a natural event such as volcanic activity, and increased sunlight. Carbon dioxide is one of the main greenhouse gases, just behind the water vapor in the amount and level of carbon dioxide in the atmosphere, the industrial revolution increased by almost 40%. Carbon dioxide releases people in Number of different contexts, for example, in the United States, approximately 40% of carbon dioxide emissions come from electricity production by combustion of fossil fuels, while cars are responsible for another 33% of emissions.

Although not so predominant in the atmosphere, methane is another greenhouse gas responsible for global warming. Methane is approximately 20 times effective in capturing heat, such as carbon dioxide, and during the last century the methane level increased by almost 150%. The production of fossil fuels and extensive cattle production releases large amounts of methane. Methane is also produced in rice fields and as global demand for rice has increased, this only crop has become a significant contributor to methane production.

While some causes of global warming can be directly associated with human activity, others come as a cascade effect. As the average temperature of the planet increases, certain disintegration systems and can increase the degree of global warming. For example, a large part of the northern width of the planet is covered with permafrosts, a kind of solid frozen soil. This permafrost worked as a sink for many greenhouse gases, including carbon dioxide and methane, for tens of thousandFor years, and as temperatures increased, permafrost, which was frozen for more than 30,000 years, began to melt. In addition to moving the Earth often in danger, this also causes gas to release into the atmosphere, which further accelerates the global warming process.

Other cascading causes of global warming include the LED albedo effect and reducing ocean sequencing. As the temperatures rise, the LED on the planet melts, reducing the amount of highly reflective soil, which in the past minimizes the absorption of solar energy and increases the melting rate. As the oceans warm, Thhustota's nutrients decreases, leading to a decrease in the panel of diatoms, which in turn reduces the ability of the oceans to restore carbon. Although there are other small contributors to global warming, it is largely the release of carbon dioxide and methane to the atmosphere that is assumed that it is responsible for constantly accelerating warming worldwide.