<a href="http://www.bbc.co.uk/news/science-environment-15818659">The BBC reports</a> on growing concerns that ozone-friendly HFCs are not friendly to climate-change, because the average global warming potential of the present mix of HFCs is about 1600--so a kilogram of HFC has about 1600 times the effect on global warming as a kilogram of carbon dioxide.
The HFCs: A Critical Link in Protecting Climate and the Ozone Layer, a report produced by the UN Environment Programme (UNEP), projected that the global warming potential of HFCs in 2050 could be comparable with present emissions from the global transport sector.
The HFCs: A Critical Link in Protecting Climate and the Ozone Layer, a report produced by the UN Environment Programme (UNEP), projected that the global warming potential of HFCs in 2050 could be comparable with present emissions from the global transport sector.