Causes: man-made industrial chemicals

Causes: man-made industrial chemicals

(Image: Nicholas Hippert)

Man-made industrial chemicals

Summary

  • CFCs, HCFCs, HFCs, PFCs and others (Fig. 2) are man-made chemicals with a global warming potential many thousands of times that of CO2. Some contribute to the loss of the ozone layer. CFCs have been linked to why the Arctic and Antarctic regions are warming faster than anywhere else on Earth.
  • Collectively, they  contribute 2.4% to NZ’s emissions.
Fig. 1: Sulphur hexafluoride atmospheric concentrations 1994-2000. (Image: NOAA Global Monitoring Lab.)

SF6, CFCs, HCFCs, HFCs, PFCs, and others

Fig. 2 Chemical that contribute to warming the atmosphere. Click on the image to be taken to the NOAA page to see the latest measurements. (Image: NOAA Global Monitoring Laboratory)

Explainers

Global Warming Potential (GWP):

Is the heat absorbed by any greenhouse gas in the atmosphere, as a multiple of the heat that would be absorbed by the same mass of carbon dioxide (CO2). This is sometimes written as eCO2 or e-CO2.


References and further reading