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The Earth's average surface absolute temperature for the 1961–1990 period ... chart is from NASA data of ... was the warmest period in the last 1000 years.
The geologic temperature record are changes in Earth's environment as determined from geologic evidence on multi-million to billion (10 9) year time scales. The study of past temperatures provides an important paleoenvironmental insight because it is a component of the climate and oceanography of the time.
According to IPCC Sixth Assessment Report, in the last 170 years, humans have caused the global temperature to increase to the highest level in the last 2,000 years. The current multi-century period is the warmest in the past 100,000 years. [3] The temperature in the years 2011-2020 was 1.09 °C higher than in 1859–1890.
A "schematic diagram" of global temperature variations over the last thousand years [23] has been traced to a graph based loosely on Lamb's 1965 paper, nominally representing central England, modified by Lamb in 1982. [17] Mike Hulme describes this schematic diagram as "Lamb's sketch on the back of an envelope", a "rather dodgy bit of hand ...
Previously, 2023 was named the planet’s warmest year on record. Last year’s average land and ocean surface temperatures topped the 2023 milestone by less than two-tenths of a degree Fahrenheit ...
Top chart: Earth's climate has cycled between ice ages and warm interglacial periods, with each cycle taking tens of thousands of years or more. Middle chart: Global average temperature was in a cooling trend for thousands of years before fossil fuel based industrialization. Since then, it has increased about a full 1°C—in a time period less ...
On Thursday, the average global temperature reached 17.23 degrees Celsius, or 63.01 degrees Fahrenheit, the highest since NCEP records first started in 1979, according to the University of Maine's ...
500 million years of climate change Ice core data for the past 400,000 years, with the present at right. Note length of glacial cycles averages ~100,000 years. Blue curve is temperature, green curve is CO 2, and red curve is windblown glacial dust (loess). Scale: Millions of years before present, earlier dates approximate.