نام فایل : گرماي زمين انگليسي

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Global warming
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This article is about the current period of increasing global temperature. For other periods of warming in Earths history, see
Paleoclimatology
and
Geologic temperature record
.
Global mean surface temperature anomaly relative to 1961–1990
 

Mean surface temperature anomalies during the period 1995 to 2004 with respect to the average temperatures from 1940 to 1980
Global warming
is the increase in the
average measured temperature
of the
Earth
s near-surface air and
oceans
since the mid-20th century, and its projected continuation. In media, it is synonymous with the term "climate change."
Global surface temperature increased 0.74
±
...