Paying airlines to scrap — instead of sell — old planes produces environmental benefits at a low cost
What emerges is a fragmented view of corporate contribution to global warming
Companies that report emissions appear greener only in a narrow measure
Far from burn zones, especially for renters and those with iffy credit, money troubles follow fires
Information helps users decide when, and whether, to venture outside or exercise
Tough standards led to an increase in auto-related patents
Breakthrough technologies are years off for aviation, but incremental improvements are available