The strain on natural resources, macho fashion bloggers, social media and consumer electronics

McKinsey Quarterly examines the race to tackle one of the biggest challenges in the decades ahead: the strain on natural resources that will result from a huge new global middle class.

-Tensions between the haves and have-nots in America are “at their most intense level in nearly a quarter-century,” says the AP, reporting on a new Pew Research Center study on the economic divide.

-A government study finds that in 2010, recession-squeezed Americans put off or limited health care spending.

-Post-Qaddafi, young Libyans are finding a new voice through rap, reports The New York Times.

-Don Tapscott publishes Part 2 of his “20 Big Ideas for 2012” on The Huffington Post.

Marketing magazine highlights “consumer issues that will affect marketers most over the coming 12 months” (with a shoutout to JWTIntelligence along the way).

PC Magazine offers up their opinion of the best of the Consumer Electronics Show.

-A rundown of the hot categories at CES this year, including TVs, tablets, Ultrabooks and smartphone add-ons, from The New York Times‘ David Pogue.

Mashable looks at how social media is changing consumer electronics.

-Alternative-fuel cars are hot at this year’s Detroit Auto Show, but consumers ain’t buying, reports The New York Times.

The Wall Street Journal looks at how automakers are trying to appeal to young adults, many of whom have little interest in car ownership.

-Automakers at CES were focused on how their cars are linking to the cloud, reports The Wall Street Journal.

The New York Times investigates how cars are becoming a conduit for smartphone apps and content.

The Financial Times reports that Barcelona is set to become one of Europe’s biggest adopters of contactless-payment cards and terminals.

Mashable looks at how the new domain registry options might affect brands.

-China now has more than half a billion Internet users, reports The Next Web.

-Japanese Internet users lag those in other markets when it comes to social media adoption, according to new ComScore research.

-An analyst forecast sees Facebook reaching 1 billion users by August.

USA Today takes a long look at how YouTube’s new channels fit into a redefinition of television.

-The Web will host a lot more original television this year, and with bigger stars, according to TechCrunch.

-Accustomed to solitary e-commerce, shoppers have increasingly low tolerance for assertive salespeople, reports The New York Times.

Time looks at the rising number of cash-strapped American retirees who are moving in with their children—and enjoying it.

Fast Company spotlights the pros and cons of the rise of text donations and how this channel is changing the way we think about giving.

The New York Times profiles five “macho fashion bloggers, writing for a post-metrosexual world.”

-A product designer who blogs for Businessweek spotlights new food/dining designs and innovations that he believes have staying power.

-“The race is now on to map the Great Indoors,” reports Bloomberg Businessweek, spotlighting the rise of digital store, airport and arena maps, something we cited in our 100 Things to Watch in 2011 list.

-Americans racked up $5.6 billion in credit card debt in November, according to Time, perhaps in an attempt to “Live a Little,” one of our 10 Trends for 2012.

Bloomberg Businessweek‘ s“CEO Guide to 3-D Printing” examines the latest developments with the manufacturing technology.

USA Today examines its Best-Selling Books list from 2011 and finds that fiction is still gaining share over nonfiction, among other trends.

Adweek notes that magazines are doing a brisk business in back issues thanks to tablets.