Word: uncertainities
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...concrete job offers to potential TFs, leading to less scrambling for jobs among graduate students and allowing them more time to prepare their course materials and teaching plans, says Gross. He also says course instructors would be able to start teaching in earnest right away without the transitory and uncertain nature that shopping period can entail...
...resources. Even planting new trees will not solve this problem; new trees actually emit more carbon dioxide than they absorb and do not have the root structure to as effectively prevent erosion or the height to provide a sufficient canopy for life underneath. The economic benefits of logging are uncertain at best, while the environmental effects will certainly harm the long-term interests of the region, and America as a whole...
...advisability of war depends on the outcome of these and other similar propositions. Unfortunately, like all gambling propositions, the outcome remains uncertain, so we have to give our best guess—a serious guess that can only be motivated by putting down serious money. If we forced every American to invest his or her Social Security benefits in these four wagers, you can bet there would be a much different discussion right...
More broadly, ephedra science is a fledgling, uncertain field: doctors can't say definitively that the plant is dangerous, especially when taken appropriately (Bechler took three pills, not the recommended two). Last summer the Bush Administration commissioned a major Rand study of ephedra, which should provide more answers when it is published this spring...
...cannot promise that this time will be problem-free, but we do promise you our best effort. In this uncertain situation, your cooperation will be most important,” Brodhead continued...