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"My friend Andy was in his early 30s when he died of brain cancer.

"My friend Andy was in his early 30s when he died of brain cancer.

In this extended version of the talk from our latest issue , we speak with Jimmy Samartzis, managing director of environmental affairs and sustainability at United Continental about testing biofuels and partnering with biofuel producers. Photo by Jay B.

Why the logic of focusing on growth first and worrying about profitability later is often a bad idea. Every management team that wants to build a much bigger business eventually asks itself this question: "Why don’t we focus on growth first and worry about profitability later?" Bad idea. The logic may be valid, but the strategy is often flawed

Their new Arizona plant is a test case for every conceivable kind of sustainable upgrade to manufacturing.

It's hard to know what products mean when they say they are "environmentally friendly" or "fully compostable," but there are rules about what companies can and can't claim about their products.

The creator of the iPod and iPad who forever changed the way we think about computers announced his resignation today.

Many major cities have seen a decline in driving over the past few years.

Switching from incandescent to compact fluorescent light bulbs (CFLs) is easy, affordable, and can cut costs right off the bat. CFLs use 75 percent less energy, saving up to $200 for every five bulbs replaced, according to the Environmental Protection Agency (EPA). Plus, lighting expenses make up as much as 50 percent of the average commercial building's energy bill

We have a space junk problem. Fragments from very small (a millimeter) to much bigger (several meters) are whirling around overhead at fantastic speeds, threatening satellites and astronauts.

In general, manufacturers have little reason to, say, swap out incandescent lightbulbs for CFLs in their factories unless there is some sort of financial incentive. There is no bigger incentive than having one of your main customers--in this case, the world's largest consumer product manufacturer Procter & Gamble--ask you to shape up or get out

Looking to capitalize on the growing wave of excitement over all things green? Consider attending a green MBA program. Princeton Review and Entrepreneur Magazine just released their first rankings of the top 16 green MBA programs in the U.S.--a list that includes perennial favorites like Columbia University, Duke University, Stanford University, and New York University