Figure : global-temperature-and-carbon-dioxide

Global Temperature and Carbon Dioxide

Figure 2.2

Cooperative Institute for Climate and Satellites - NC
Kenneth E. Kunkel

This figure appears in chapter 2 of the Climate Change Impacts in the United States: The Third National Climate Assessment report.

Global annual average temperature (as measured over both land and oceans) has increased by more than 1.5°F (0.8°C) since 1880 (through 2012). Red bars show temperatures above the long-term average, and blue bars indicate temperatures below the long-term average. The black line shows atmospheric carbon dioxide (CO2) concentration in parts per million (ppm). While there is a clear long-term global warming trend, some years do not show a temperature increase relative to the previous year, and some years show greater changes than others. These year-to-year fluctuations in temperature are due to natural processes, such as the effects of El Niños, La Niñas, and volcanic eruptions. (Figure source: updated from Karl et al. 2009e251f590-177e-4ba6-8ed1-6f68b5e54c8a).

When citing this figure, please reference updated from Karl et al. 2009e251f590-177e-4ba6-8ed1-6f68b5e54c8a.

Free to use with credit to the original figure source.

This figure was created on November 06, 2013.

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