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It is from the perspective of scientists working in an assessment program that the following "lessons learned" are developed: (1) Get the policy questions clear; (2) Focus science on science questions; (3) Feed the client regularly; (4) Conduct an assessment at the end — and at the beginning; (5) Learn to live with 80%; (6) Recognize that research enterprises are more easily corrupted than individual scientists; ( 7) Keep the "is" and the "ought" separate; (8) Avoid hubris before the mahogany table; (9) Remember that the distribution of benefits and costs is crucial; (10) Appreciate that research budgets follow fear; (11) Put those resources on the table; and (12) Help policy analysts and decision makers outgrow their science-envy.
Results for SOâ showed an accommodation coefficient of 0.11 or - 0.02 with no significant temperature variation.
HâOâ showed a strong temperature dependence with an accommodation coefficient of 0.18 or - 0.02.
To understand how changing acidity and climate affects northeastern lakes, analyzed a subset of high-elevation lakes in Maine.
High-elevation lakes are considered sentinel sites that serve as harbingers of broader environmental change because they are more sensitive than their lower-elevation counterparts.
High-elevation lakes, like Horns Pond along Maine’s Bigelow Mountain Range, serve as sentinels for potential environmental change.
Acid Rain Research
The reduction of industrial emissions and ongoing climate change are driving changes in Maine’s high-elevation lakes.
The mass-accommodation coefficients of SOâ and HâOâ on aqueous surfaces over the temperature range 260-292 K are reported.
The experimental method used combined a monodisperse train of droplets and a low pressure flow reactor. more The mass-accommodation coefficients of SOâ and HâOâ on aqueous surfaces over the temperature range 260-292 K are reported.
Modeling studies indicate aqueous oxidation of SOâ to SOâ(2-) occurs in cloud droplets, with HâOâ implicated as the primary oxidant.
Knowledge of gas/liquid mass-transfer rates for these species is critical to modeling of the heterogeneous cloud process.