We all know that the quality of the air we breathe has an immense impact on the health of the people and the economies of developing countries. Poor air quality can also threaten the economic competiveness of cities. Increasingly global companies consciously chose to locate in livable cities. We’re already seeing that in Asia. A 2006 survey by the Hong Kong’s Chambers of Commerce showed that worsening air quality was beginning to affect investment decisions of corporations.
I spent two days last week at the Suntec Center in Singapore attending the Better Air Quality conference. This year’s theme was Air Quality in a Changing Climate. The link between the two – improved air quality and reducing climate change is sometimes not so apparent and I am glad the conference was making the link clearer. Climate change impacts all countries but the World Development Report 2010 estimates that some 75-80 percent of the damages caused by a changing climate will be borne by developing countries. If we are to limit global warming to about 2 degrees Celsius above the pre-industrial level, we will all need to invest massively in energy efficiency, renewable energy sources, and more efficient transportation.
Combating air pollution is one area where it is possible to capture important co-benefits with respect to climate change. By taking specific measures, we can simultaneously achieve local health and welfare benefits (including related to air quality) while also reducing greenhouse gas (GHG) emissions. While it is important to strive for a global deal on climate change, there are a number of things that cities can do in the interim to simultaneously reduce local environmental impacts and reduce carbon emissions. And by demonstrating on the ground some things that can work in this regard, cities can position themselves to access any global carbon financing that might become available as part of a global deal.