He must have left his calculator back at the lab (as did everyone else on this thread). Just a real quick calculation: Population of earth ~ 6.5 billion Surface area of earth 5.49e15 ft^2 Half facing sun 2.745e15 ft^2 Concentrated in temperate area, ~1/3, 0.915e15 ft^2. Everybody lives on the sunny side in or near to the tropics! Every family is a family of four and lives in a 4000 ft^2 house, 6.5e12 ft^2 Ratio of roofs to temperate surface area = 6.5e12/0.915e15 ~ 0.007 If the roofs perfectly reflected the sunlight into space without consideration of the re-heating of the atmosphere due to radiation with a participating media, the difference in heat load would be less than 1%. Based on the extremely conservative assumptions, the difference would probably be less than 0.1%. Sure, in a dense urban area, white stucco and white roofs would lower the ambient by a degree or two, but global climatic effect? I think not.

I run a small engineering services firm that is often required to provide our quality procedures as part of the vendor qualification process. I see no reason for our company nor a non-profit to pursue ISO 9001 certification yet the procedures and methods spelled out are very useful even in small organizations. We have implemented many of the business process and QA procedures using Alfresco, an open source content management system. Once set up, it is easy to use and integrates well with Microsoft/Mac/Linux desktops and email clients.