Earth's surface temperature has risen about 2 degrees Fahrenheit since the start of the NOAA record in 1850. It may seem like a small change, but it's a tremendous increase in stored heat.
The Science of Climate Change, The world is warming
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Temperature - Understanding Global Change
What's Going On in This Graph? Global Temperature Change - The
IPCC - Intergovernmental Panel on Climate Change
Causes of Climate Change, Climate Change Science
2020 in Review: Global Temperature Rankings
Global temperatures compared to a 1850-1900 baseline Data Source
NASA Says 2022 Fifth Warmest Year on Record, Warming Trend Continues – Climate Change: Vital Signs of the Planet
Global surface temperature - Wikipedia
Alarming climate change: Earth heads for its tipping point as it could reach +1.5 °C over the next 5 years, WMO finds in the latest study
Uncertainties about future climate change in the 1970's does not
Analysis: How well have climate models projected global warming? - Carbon Brief
Global temperature anomalies from 1880 to 2017