What's in our food?

The New York Times, CNN Headline News, Atlanta Journal-Constitution, ABC Evening News... the news has been filled with reports of Salmonella in peanut butter and other peanut products, and right here in Georgia! But, many other problems occur in our foods. Microbes, antibiotics, hormones, genetically-modified organisms (GMOs), pesticides, and much more... But, what's impacting human health and what's not? And, who's responsible for the oversight? There's lots to cover and discuss here. Wade in to direct where we'll go with this last topic for the semester.

Wood Preservatives

Wooden utility poles, railroad ties, fence posts, and other materials are protected from rapid degradation by wood preservatives. In a recent reassessment report, the EPA acknowledged that these chemicals and their byproducts (dioxins, furans, creosote, hexachlorobenzene, etc.) pose environmental and human health risks. Some environmental groups are pressuring the EPA and our current administration to ban the use of these materials. Other countries have switched to alternatives that are not composed of wood (concrete, steel, recycled composites). Should the U.S. do the same? What are the risks involved in continued usage of these chemical preservatives? What are the economics involved in switching to alternatives? Do the risks merit a ban of these chemical preservatives?

Target Malaria

Malaria kills more than 1 million people each year. Most are children in Africa and Southeast Asia. African nations have set a goal of halving mortality caused by malaria on that continent by the year 2010, and the government of the Peoples Republic of China has taken steps to assist with managing malaria across its borders with Southeast Asian countries. These collective efforts face some significant health, environmental and political impediments. One of the focal issues is the use of the insecticide DDT as an indoor residual spray to control mosquitoes that vector the malarial disease-causing protozoan. Some suggest an increased use of the indoor DDT sprays, even in light of this chemical being banned by many governments because of its reportedly negative environmental and health impacts. This debate threatens to derail the progress of discussions and efforts to abate and prevent malaria.