what it is ?
Global warming is the long-term rise in the average temperature of the Earth’s climate system. It is a major aspect of climate change, and has been demonstrated by direct temperature measurements and by measurements of various effects of the warming.
How it is caused…
The scenarios referred to above depend mainly on future concentrations of certain trace gases, called greenhouse gases, that have been injected into the lower atmosphere in increasing amounts through the burning of fossil fuels for industry, transportation, and residential uses.
Modern global warming is the result of an increase in magnitude of the so-called greenhouse effect, a warming of Earth’s surface and lower atmosphere caused by the presence of water vapour, carbon dioxide, methane, nitrous oxides, and other greenhouse gases. In 2014 the IPCC reported that concentrations of carbon dioxide, methane, and nitrous oxides in the atmosphere surpassed those found in ice cores dating back 800,000 years.
How serious is the global warming..?
The answer is global warming. Global warming is a serious threat as shown through climate change, people’s everyday lives, and pollution. Global warming is being greatly affected by people’s everyday lives. Industrialization, deforestation, and pollution are causing greenhouse gases to trap in heat into the Earth’s atmosphere.