Lawmakers in Australia have passed a law that will impose a tax on the country's top 500 polluters, and use the resulting funds to invest in clean energy. The legislation had a long and bitter passage through Parliament, and deeply divided Australians who are heavily reliant on coal-fired power plants.

Greece is still struggling to form a temporary coalition government. The country's economy is in shambles with default a real possibility. And that's something that could ripple through Europe's economy. The problem is, lawmakers in Greece can't agree on who should lead that government.

The nation's biggest retailer is planning to offer a wide range of medical care in U.S. stores. A Wal-Mart document seeking partners for the effort says the company aims to become the "largest provider of primary healthcare services in the nation."

The Wall Street Journal has a chart showing which college degrees lead to the best — and worst — chances of employment. It's based on 2010 Census data. At the top, with zero unemployment are accounting and actuarial science — that is the science of risk assessment.

About one third of Americans — 100 million people — do not have Internet access in their homes. The fear is they'll be left behind as schools and employers rely more on technology. Companies will offer broadband service to eligible families for $9.95 a month.

Wednesday is the deadline NBA Commissioner David Stern has given players to accept the deal on the table. It offers players up to 51 percent of their annual basketball-related income. If not accepted, Stern has threatened to go back to an early, lesser offer.

This week, a Continental flight from Houston to Chicago used a biofuel blend made in part from algae, and Alaska Airlines will fly passengers using a fuel made in part from cooking oil. The fledgling environmental effort has many hurdles, as biofuel costs nearly six times as much as regular jet fuel.