Dear A.M. Costa Rica:
May I support and amplify Dr. Loren B. Ford’s concerns over power from waste plants in Costa Rica. I was involved in such project assessments in Europe.
Dr. Ford mentions the importance of regulation and enforcement regarding toxic carcinogenic emissions. The other issue is that the residue, of around 20 percent of the volume burnt, still goes to landfill.
It contains concentrated heavy metals and other nasty substances. Because these are now contained in ash, when it rains they rapidly leech out. If the waste site is improperly sealed, this leads to leakage into the water table. My experience is that developing countries rarely have suitable waste sites or enforce appropriate regulations for this.
Less haste might be appropriate with this seemingly green idea.