Indicator: A-07 Greenhouse - carbon dioxide concentrations and growth rates

Data

Cape Grim monthly averaged atmospheric carbon dioxide (CO2) data in units of parts per million (ppm)

Cape Grim monthly averaged atmospheric carbon dioxide (CO2) data in units of parts per million (ppm)

Source: CSIRO Atmospheric Research and Cape Grim Baseline Air Pollution Station/Australian Bureau of Meteorology, January 2005

What the data mean

The data shows a steady increase in carbon dioxide concentrations over the reporting period, 1976 to 2004. The annual growth varies from one to three parts per million per annum.

Data Limitations

Nil known

Issues for which this is an indicator and why

Atmosphere — Climate variability and change - Greenhouse 

Atmospheric constituents such as carbon dioxide, methane and nitrous oxide contribute to a natural greenhouse effect and, with clouds, maintain the earth’s energy balance. The earth’s energy balance can change through increasing concentrations of these constituents in the atmosphere, as a result of human activities and natural events. Atmospheric concentrations of carbon dioxide and growth rates are a direct indicator for this issue

Other indicators for this issue:

Further Information