“Side Effects” >Cats are especially susceptible to DDT, which they ingest by licking off of their fur Widespread death of cats led to a significant increase in the population of rats Increases in the rat population led to outbreaks of other diseases such as sylvatic plague and typhus
“Side Effects” Cats are especially susceptible to DDT, which they ingest by licking off of their fur Widespread death of cats led to a significant increase in the population of rats Increases in the rat population led to outbreaks of other diseases such as sylvatic plague and typhus
“Side Effects” To deal with the problem cats were collected and then parachuted into the affected villages by the Royal Air Force. Different accounts put the number of parachuted cats between somewhere in the several dozens and 14,000 O'Shaughnessy,American Journal of Public Health,2008
“Side Effects” To deal with the problem cats were collected and then parachuted into the affected villages by the Royal Air Force. Different accounts put the number of parachuted cats between somewhere in the several dozens and 14,000 O’Shaughnessy, American Journal of Public Health, 2008
Policy Resistance In many cases,the system responds in a way that renders the policy ineffective or actually worsens the problem
Policy Resistance In many cases, the system responds in a way that renders the policy ineffective or actually worsens the problem
Policy Resistance In British Guiana three species of mosquito transmitted malaria,but only one fed on humans The use of DDT between 1946 and 1950 successfully exterminated the species that fed on humans This led to a 68%increase in the human population by 1964
Policy Resistance In British Guiana three species of mosquito transmitted malaria, but only one fed on humans The use of DDT between 1946 and 1950 successfully exterminated the species that fed on humans This led to a 68% increase in the human population by 1964
Policy Resistance >The population increase led to an increase in land used for rice cultivation This decreased the land available for raising cattle The decrease in cattle led one of the species of mosquito to switch to feeding on humans leading to an increase in the prevalence of malaria
Policy Resistance The population increase led to an increase in land used for rice cultivation This decreased the land available for raising cattle The decrease in cattle led one of the species of mosquito to switch to feeding on humans leading to an increase in the prevalence of malaria