ABSTRACT
Another good thing to note is that we have only scratched the surface of planet Earth by digging only a few kilometres or so down. Unknown reserves of valuable resources lie beneath our present attempts at gardening in the near surface. So what is the problem? Centuries of habitation have resulted in us depositing our waste gas straight into the atmosphere at ground level and out of high chimneys when it was considered unacceptable to release products of combustion from large fossil-burning plant too near to people. Dispersal of combustion products relied upon prevailing winds and nobody would be
Traffic chimneys do have effects.
