control greenhouse gas emissions may take us in some new directions. Improvements in energy efficiency and
conservation will not be enough.
actions to constrain emissions will really focus our attention to the
intrinsic value of fossil fuels as these actions will tend to increase
the cost. This will in turn provide an
incentive to continue developing alternative sources of energy such as wind
|We may need to
increase our energy use to control atmospheric greenhouse gases. We provided
one possible extreme example of the use of energy to create a greenhouse gas
sink through increased irrigation. Its likely that initiatives to sequester
the emissions from coal may also lead to increased energy use. There are many other such cases.
ingenuity in the production and use of energy has served us well to date and
it seems there is a lot of room to develop greenhouse gas control technology
with greater cognizance of human integration with the overall environment.