Global annual average temperature as measured over both land and oceans has increased by more than 15F 08C since 1880 through 2012. There are numerous estimates of temperatures since the end of the Pleistocene glaciation particularly during the current Holocene epoch.
Global Temperature Record Wikipedia
2010 and Lenssen.

Average global temperature graph. The global annual temperature has increased at an average rate of 008C 014F per decade since 1880 and over twice that rate 018C 032F since 1981. The global annual temperature has increased at an average rate of 007C 013F per decade since 1880 and over twice that rate 018C 032F since 1981. The temperature record of the last 2000 years is reconstructed using data from climate proxy records in conjunction with the modern instrumental temperature record which only covers the last 170 years at a global scale.
Global average surface temperature has risen at an average rate of 015F per decade since 1901 see Figure 2 similar to the rate of warming within the contiguous 48 states. Red bars show temperatures above the long-term average and blue bars indicate temperatures below the long-term average. 5C is real If no action is taken to mitigate climate change global temperatures could increase by a massive 5 degrees by 2100.
The most detailed information exists since 1850 when methodical thermometer-based records began. See page 1 and page 2. The Intergovernmental Panel on.
Two-thirds of the warming has occurred since 1975 at a rate of roughly 015-020C per decade. Global temperatures have increased by 09 degrees Celsius since 1880 with over two thirds of the increase happening in the last 50 years. GISS Surface Temperature Analysis v3 Analysis Graphs and Plots.
Global average land-sea temperature anomaly relative to the 1961-1990 average temperature. This average is the baseline represented by the horizontal line. The black line shows atmospheric carbon dioxide CO2 concentration in parts per million ppm.
Additional figures based on the GISTEMP analysis which require manual effort to create are available from Columbia University web pages maintained by Dr. The Met Offices forecast for the 2020 global mean temperature issued at the end of 2019 099 C to 123 C with a central estimate of 111 C agrees closely with the latest observations of. The 2020 Northern Hemisphere land and ocean surface temperature was the highest in the 141-year record at 128C 230F above average.
The year 2020 ties with 2016 as the warmest on record. Large-scale reconstructions covering part or all of the 1st millennium and 2nd millennium have shown that recent temperatures are exceptional. Annual Arctic sea ice minimum 1979-2020 with area graph Video.
As a result of heat-trapping greenhouse gases from the burning of fossil fuels average global temperatures have warmed by 2 degrees Fahrenheit since the late 1800s and the warming trend has. Distribute the global temperature data either as a whole set or pre-divided for individuals or groups. Images created from GRACE data showing changes in.
In the Global Temperature 2019 graph the average is the sum of the global surface temperatures for 1951 - 1980 divided by 30. The GISS Surface Temperature Analysis ver. Starting in the mid-1970s global temperatures rose 05 C over a period of 25 years.
Explain to students that they will be analyzing average temperatures measured on Earth for the past 136 years but each group will only be looking at a portion of that data. The global temperature record shows the fluctuations of the temperature of the atmosphere and the oceans through various spans of time. This page is updated each month by an automatic procedure.
A graph and an animated time series showing the change in global surface temperature relative to 1951-1980 average temperatures. Distribute graph paper or graphing worksheet. The graph is correct.
Worldwide 2015 was the warmest year on record and 20062015 was the warmest decade on record since thermometer-based observations began. The pause in global warming observed since 2000 followed a period of rapid acceleration in the late 20th century. Graphs and tables are updated around the middle of every month using current data files from NOAA GHCN v4 meteorological stations and ERSST v5 ocean areas combined as described in our publications Hansen et al.
It shows the average temperature in each year since 1880 using data from NASAThe problem with it is that it is misleading using a scale that intentionally hides the actual. In 2019 the average temperature across global land and ocean surfaces was 171F 095C above the twentieth-century average of 570F 139C making it the second-warmest year on record. According to an ongoing temperature analysis conducted by scientists at NASAs Goddard Institute for Space Studies GISS the average global temperature on Earth has increased by a little more than 1 Celsius 2 Fahrenheit since 1880.
Since the turn of the century however the change in Earths global mean surface temperature has been close to zero. Color-coded map of changing global surface temperature anomalies from 1880 through 2020. Earths global average surface temperature in 2020 tied with 2016 as the warmest year on record according to an analysis by NASA.
4 GISTEMP v4 is an estimate of global surface temperature change.
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