Global warming is a problem that we are facing these days. What does global warming mean? Global warming is the observed increase in the average temperature of the Earth's near-surface air and oceans in recent decades and its projected continuation.
The ozone layer, which is the shelter of the harmful radiation, is facing serious problems that are caused by humans. An ozone layer is vitally important to life because it absorbs biologically harmful ultraviolet (UV) radiation emitted from the sun. The first cause is human activities and because of them, the concentration of carbon dioxide has increased. Another cause is combustion of fossil fuels and it has also increased the concentration of carbon dioxide. These problems have caused the Ozone layer to start decreasing in some places which puts the people in some areas in danger. If people get infected there is a danger of getting skin cancer and other diseases.
Water expands when heated, and sea levels are expected to rise due to climate change. Rising sea levels will also result as the polar caps begin to melt. Increased greenhouse gases and the greenhouse effect also are feared to contribute to an overall warming of the Earth’s climate, leading to a global warming (even though some regions may experience cooling, or wetter weather, while the temperature of the planet on average would rise).
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