gical advances and pollution have certainly influenced public outcry towards change, and influenced corporations to alter their poisoning mechanisms, the immediate change that Sagan calls for will necessarily meet with resistance. Sagan's own "revelation" about mankind's reticence to act unless literally "under the gun" remains a valid point. Destruction of the ozone layer and incidents such as the Exxon oil spill in Alaska are indeed enormous calamities, and we have been cautioned by at least one reputable scientist as to the risks we take by delaying reform, but these events are still not great enough to spawn greater action than handling the immediate situation. It is one thing to agree that car travel pollutes the environment, and to see dense smog in the Los Angeles Basin, but millions will still get in their vehicles tomorrow to drive their jobs. Current technologies available have been incorporated into lifestyle at a very practical level. The large cogs of public and private interests also turn slowly due to this infrastructure of product usage which has become so firmly entrenched. Decisions that were made decades ago, such as automobile transit phasing out train transit, and the manufacture of energy through the building of nuclear plants, effect and influence us right now at very fundamental levels. Just as the ozone layer will take decades to repair itself, society and public acceptance requires time to shift and modify as well, as Sagan does well to point out. The challenge to orchestrate the changes necessary for environmental improvement are further complicated in at least two ways. First, there are conflicting viewpoints as to the role government plays to influence private industry to replace technologically damaging processes with more ecologically sound technologies. Second, to phase out current technologies is a burden many corporations are unwilling to take on; implementation of new tech...