Hansen is well known in climate change research, with many research papers already published on the how's and why's of current trends of global climate. The new research reexamines the importance to global climate change of carbon dioxide, as well as the other major greenhouse gases and black carbon pollution. According to their calculations, these others are the major culprits so far. That's not to say that carbon dioxide doesn't play a part. Rather it is a conspirator in the global climate change playing field.
Ozone is a known respiratory irritant, and it also negatively impacts crop productivity.
So continuing to cut back on CFCs would help reduce their threat to stratospheric ozone, while at the same time, helping curtail their impact on global climate change. The good news is that many countries already agree on the value of cutting emissions for many of these gases. Thus, this new scenario offers hope. Working to cut air pollution over the next fifty years, while simultaneously adopting new energy practices that rely on sustainable and efficient technologies, which reduce carbon dioxide emissions, could seriously ease the impact of global warming. Proceedings of the National Academy of Sciences, vol.