Coastal cities, such as New Orleans and New York, need to do disaster planning and either prevention or recovery (or both). Farming areas need to manage water supplies that may be threatened by drought, and/or areas threatened by flooding. And so on.
On higher levels, it's mostly 1. macroscale versions of the same things, and 2. allocating resources for those things, and for general management of changing conditions. At the national level, there are also concerns about treaties and the like to actually try to *reverse* climate change, or at least slow it down.
Here's a nice list of the positive and negative (mostly negative) effects of global warming: http://www.skepticalscience.com/global-w...
Mostly by taxes going up to fix the natural occurrence of global warming and/or cooling.
It gives government to ability to propose regulations and controls, in basically a power grab.
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