Global Warming is a term commonly used in two ways:
is the phenomenon observed in the temperature measurements showing an average increase in temperature of the Earth's atmosphere and oceans in recent decades.
is a theory that predicts, based on projections based on computer simulations, future growth temperatures.
The term "global warming" generally implies the consideration of the influence of human activities. This variant anthropogenic theory predicts that this will happen if emissions continue greenhouse gases . The majority scientific opinion on climate change says that "most of the warming observed over the past 50 years is attributable to human activity" [1] . The simulations suggest that the main cause of heat-induced component of humans would be due to increased carbon dioxide . The planet's temperature has been rising since the mid-nineteenth century , when it ended the period known as the Little Ice Age .
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