|In summary, we
may need to control atmospheric greenhouse gases if human development is to
be sustained. Many have been convinced this is simply a matter of improving
efficiency and conserving energy resources.
us that approach is inadequate and will fail. We will need to keep our focus
directly on control of greenhouse gases to succeed.
developed means to manage the composition of the atmosphere. The carbon cycle
provides insight as to how it is done. Humans can help. We will need to use even more energy.