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Global average temperatures show that the Medieval Warm Period was not a planet-wide phenomenon, and that the Little Ice Age was not a distinct planet-wide time period but rather the end of a long temperature decline that preceded recent global warming. [1] The temperature record of the last 2,000 years is reconstructed using data from climate ...
Projected global surface temperature changes relative to 1850–1900, based on CMIP6 multi-model mean changes. The IPCC Sixth Assessment Report defines global mean surface temperature (GMST) as the "estimated global average of near-surface air temperatures over land and sea ice, and sea surface temperature (SST) over ice-free ocean regions, with changes normally expressed as departures from a ...
800,000-, 2,000-, 139-year global average temperature —— Further includes an 800,000 year chart Temperature reconstruction last two millennia —— source of top chart 20190727 COMPARE warming stripes - Global vs Caribbean 1910-2018 (ref 1910-2000) —— top warming stripes graphic (global) uses same data (NOAA) as the bottom chart
Source of data for series of charts titled "mm Month - Percent of global area at temperature records - Global warming - NOAA.svg": — Source's title/subtitle: "Mean Monthly Temperature Records Across the Globe" — Publisher: National Centers for Environmental Information (NCEI) of the National Oceanic and Atmospheric Administration (NOAA)
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 ...
Much of the SVG code was automatically generated by the "Vertical bar charts" spreadsheet linked at User:RCraig09/Excel to XML for SVG. Uploader moved elements around manually using a text editor before uploading. This graphic is more recent and more detailed than predecessor File:Global temperature change - decadal averages, 1880s-2000s (NOAA).png
Since then, it has increased about a full 1°C—in a time period less than 1/3,000th the width of the top chart. Bottom chart: This 1°C increase, commonly called global warming, accelerated since 1980—a period less than 1/20,000th the width of the top chart. SOURCES (and related explanations): 1. Top chart (800,000 years): — Data itself:
Source of data for series of charts titled "mm Month - Percent of global area at temperature records - Global warming - NOAA.svg": — Source's title/subtitle: "Mean Monthly Temperature Records Across the Globe" — Publisher: National Centers for Environmental Information (NCEI) of the National Oceanic and Atmospheric Administration (NOAA)