Discuss the objective, and the success, of the 1987 Montreal Protocol. To what factors do scientists attribute its success?
What will be an ideal response?
The objective of the Montreal Protocol was to reduce the use of CFCs, which were contributing to the growth of the ozone hole, and which, subsequently, would increase the probability of humans developing skin cancer. The world community came together in 1987 to craft the Montreal Protocol, which has now been signed by over 180 nations. At this convention, nations agreed to cut CFC production in half. Today, the production and use of ozone-depleting compounds has fallen 95% since the late 1980s, and scientists can discern the beginnings of long-term recovery of the ozone layer. For these reasons, the Montreal Protocol and its follow-up amendments are widely considered to be the biggest success story thus far in addressing a global environmental problem. Environmental scientists have attributed this success primarily to scientific research that proceeded rapidly and used the latest technologies, government and industry working together to develop technological fixes and replacement chemicals. Finally, the process successfully followed an adaptive management approach, which allowed for changing strategies midstream in response to new scientific data, technological advances, or economic figures.
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Indicate whether the statement is true or false
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A) arithmetic growth B) natural selection C) type I survivorship D) type III survivorship E) type II survivorship
Define the term benefit-cost analysis as it relates to environmental regulation. How does this analysis method address external costs? Distinguish it from cost-effectiveness analysis
What will be an ideal response?
A “vector” is defined as
a. a highly toxic, radioactive compound. b. an organism that transfers pathogens to a host. c. a compound with fire-retardant properties. d. a compound that mimics natural substances.