Presentation on theme: "Presented by Rita Pakalniskyte Marie-Helene Pech Marcin Otorowski Iris Müller Anne-Laure Mairesse."— Presentation transcript:
Presented by Rita Pakalniskyte Marie-Helene Pech Marcin Otorowski Iris Müller Anne-Laure Mairesse
Case background DDT – Dichloro – Diphenyl - Trichloroethane DDT as a way of preventing malaria Malaria facts: 2-3 million deaths annualy 350 – 500 million people affected Economic loss (1/2 billion dollars per year) Threat of 40% world population Mostly affect poor, developing countries Since 1939 DDT is commonly used for fighting against malaria
The problem Long half-life length (up to 15 years), Bio-accumulates in human body and environment, Passed from mother to infants during breast feeding No one ever died from sprayed DDT No proofs that it cannot lead to death nor environment pollution (asbestos example). UNO considers banning usage of DDT -> less polluted environment but higher amount of malaria infections. Environment vs human life
Approve the ban Keep using DDT Other options? Principal values for decision Human health and life Natural environment Financing Possible options
Why to use, why not to use DDT? Efficient and cheap way of defeating malaria Spread of malariaEconomy profitIf banned, many people will dieNo sure anything better will come upLimited use, indoor useNo risk-fee technology Unknown effect on human health and environment Irreversible to the natureHuge risk takenBut still, there is a riskWhat risk can we afford?
The choice We should not ban DDT. It can save many people. I am aware of risk, but the benefits are definitely worth it Marie: We should ban DDT. We cant afford such a high risk, and be responsible for its effects Marcin:
Two methods of making this decision Risk / Benefit analysis Precautionary principle
Risk/benefits analysis vs precautionary principle Risk / benefit analysisPrecautionary principle You must prove the potential benefit is valuable enough to take some risk connected. You must prove it is completely safe to introduce particular technology Focuses on proper management of the risk Focuses on eliminating the risk With precautionary principle, there wouldnt be such invention like cellular phones, nuclear power plants etc. With precautionary principle, there wouldnt be ozone depletion, harmful effects of asbestos and haloalkanes etc.
The decision Awareness of difficulty of choice Complex issue Choosing less evil solution Ethical and moral problem Consequences Our solution – to limit usage of DDT