how do we know global warming is real
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Increase in average temperatures and temperature extremes
- One of the most immediate and obvious effects of global warming is the increase in temperatures around the world.
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Explanation:
The simplest way is through temperature measurements. Agencies in the United States and Europe have independently analyzed historical temperature data and reached the same conclusion: the Earth's average surface temperature has risen roughly 0.8° Celsius (1.4° Fahrenheit) since the early 20th century.
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