From the website of the Clean Air Institute, you have here for your convenient consultation more than 50 audio presentations made during their May 2011 Conference for Sustainable Transportation, Air Quality and Climate Change held in Rosario Argentia. They report that this collection is the largest online collection of audio presentations in Spanish on transportation issues, air quality and climate change. You can access it in Spanish here. And in English, a useable (to us) Google translate version here .
For more on the Clean Air Institute click here.
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