As the planet overheats and gas prices remain high, we could get thinner; we might sneeze more; and we have a higher chance of getting kidney stones. That's the good, the bad and the ugly, according to the latest research released concerning the future of our health in terms of external circumstances.

Have higher gas prices turned your lawn into a jungle? Allay those fuel fears by switching to a push reel mower. Harkening back to those halcyon days of 1950, the reel mower relies on a rotating cylinder of 5 to 7 blades for silently snipping your grass into manicured perfection. All of this beauty is not achieved without some sweat, though. Your sweat.

In April, the U.S. Secretary of Transportation proposed new CAFE (corporate average fuel economy) standards that would increase the average efficiency of passenger cars and light trucks by 4.5 percent per year from 2011 to 2015. A lot of people wondered why the federal government wasn't aiming higher.

We reported last week on how feebly powered, fuel-sipping 1990s-vintage hatchbacks have been lighting up the used car market recently due to skyrocketing gas prices. In an interesting twist to this phenomenon, I actually benefited myself somewhat from this hysteria when I had to sell my beloved natural-gas-powered 2006 Honda Civic GX last week on eBay, turning it into one of the smarter investments I made all year.

A rust-dappled Hyundai for $3,000, a clapped-out Geo Metro for $5,000, and a censurable Ford Festiva for six grand? Welcome to upside-down world. The rising price of dinosaur champagne has already decimated the large-SUV business, and now the realities of gasoline economics are elevating what was once the lowliest segment of the used-car market into Croesus' territory.

Mass transit systems across the country are experiencing surges in ridership, pushing many of them to the brink of capacity for the first time. As the price of oil continues its inexorable climb—now past $125 a barrel—some metropolitan areas have seen an increase in use as large as 15% over this past year. While cities with integral systems, like New York, have reported a small bump, it is municipalities in which car transport has been the norm which are now overflowing with new subway, light rail, and bus riders.

In 2007, registrations of new hybrid vehicles jumped by 38 percent to 350,289 vehicles, according to a new report from R.L. Polk & Company. Gee, I wonder why? Maybe it's got something to do with rising prices at the pump, or climate change. Or maybe there's something bigger at play.