A world without ice cream is unthinkable. But serving up frozen food in the U.S. in the middle of the summer (when we scream most loudly for ice cream) is creating greenhouse gases due to the hydroflourocarbons used in most refrigerators and freezers. Something must be done.

Enter Ben & Jerry's, whose parent, Unilever (NYSE: UL) has been working with Greenpeace, McDonald's (NYSE: MCD) and Pepsico, Inc. (NYSE: PEP) to develop more global-warming-friendly (or unfriendly?) freezers. The company will be rolling out the country's first HFC-free freezer in convenience stores and supermarkets across the U.S.; and as a bonus to your favorite ice cream outpost, the green freezers use about 10% less energy than their HFC-emitting cousins.

The new freezers use butane rather than HFC as a refrigerant and required special permission from the EPA; which has banned the use of butane and propane (which are used throughout Europe and Central and South America for refrigerators and freezers) because these hydrocarbons are flammable and are blamed for depleting the ozone layer. The 2,000 freestanding Ben & Jerry's freezers are just a test, and it may be eight to 10 years before the company is allowed to replace all of its 100,000 freezers nationwide.

While it will likely be an extremely moderate impact on expense reduction, the rollout of green freezers stands to underscore Ben & Jerry's ethical, do-gooder image in the mind of its consumers and give it yet another edge over rival Haagen-Dazs.

Troubled business Krispy Kreme Doughnuts (NYSE: KKD) wants to use one of America's favorite treats -- ice cream -- to help bring it back to its glory days. The ice cream will be a soft-serve concoction, and the hope is that it will add another dimension of value for Krispy Kreme's patrons beyond the core doughnut portfolio. I guess the former pastry star thinks that if you're not in the mood for a doughnut, maybe you're in the mood for ice cream. (Full disclosure: I don't like ice cream!)

You know, I can't really criticize the effort. Seems like a simple enough way for Krispy Kreme to expand its base of offerings. But will it suddenly set the company on a path of unfettered growth? I can't say I see that. From an investor's point of view, Krispy Kreme is the same stock to be avoided as it was before I read about this ice-cream initiative. In fact, it was only recently that I took a look at the company's earnings and realized that I remained a bear on the business. I still think investors would be better off looking at ideas such as McDonald's (NYSE: MCD) and Burger King (NYSE: BKC) before Krispy Kreme. Yeah, they're not big on doughnuts, but they do well with burgers and fries, and they're a better way to play chains that sell less-than-healthy foodstuffs.

The ice cream plan is definitely a worthwhile experiment. But if management is just going to throw it on the menu without launching an aggressive advertising campaign in support, then I'm not sure how much good it can actually do. I've seen turnaround plans before that try to exploit some new product or project but fail to give it a proper push. We'll have to see what kind of push Krispy Kreme goes for with its ice cream, but I'm still not a buyer of the stock.

Disclosure: I don't own any company mentioned; positions can change at any time.

I love ice cream as much as the next guy. OK, way more than the next guy. I've eaten far more than my fair share of Haagen-Dazs and Ben & Jerry's lux frozen treats. But though I've watched with fascination as Ben & Jerry's exalted hippie icons and the odd politician with its flavors, I've never thought of an ice cream as an icon of political opinion.

No more will I hold such a narrow world view! This weekend, Haagen-Dazs announced a new flavor, Vanilla Honey Bee. The flavor isn't meant for its delicious honey taste, as it is to bring more visibility to the plight of the honey bees (overworked, it seems, from too much travel and forced labor in the almond groves, though cell phone towers have also been suspected). Haagen-Dazs is donating $250,000 to two universities to study Colony Collapse Disorder, and a spokesperson says that 40% of the company's flavors depend (in one way or another) on bees: "We use 100% all natural ingredients like strawberries, raspberries and almonds which we get from California. The bee problem could badly hurt supply from the Pacific Northwest."

On the other side of the ice cream aisle, Ben (Cohen) and Jerry (Greenfield), founders and corporate namesakes of Ben & Jerry's, have gone public with their endorsement of Barack Obama for president. They will tour Vermont in Obamamobiles, giving away scoops of "Cherries for Change" ice cream. While fans on Obama's web site seem excited, there's no news as to what sort of flavor "Cherries for Change" is (or is it just Cherry Garcia with a new label?), whether "Baracky Road" or "Yes we Pecan" will follow, or if corporate overlord Unilever (NYSE: UL) is distributing the flavor to grocery store freezer sections near you.

This post is part of our Battle of the Brands feature. Let us know which brand you prefer, and watch out for more Battle of the Brands posts.

If you like ice cream, you're probably already in one camp or the other. Few people claim to love Ben & Jerry's peacenik-y, tied-up-and-twisted flavors equally as well as the upper-crust uber-richness of Haagen-Dazs' highly-crafted premium varieties.

Oddly, though both have such strong brand identity and have created corporate cultures that seem pure and fiercely independent, both are tiny units of much larger (and unsexy) food companies. Ben & Jerry's was acquired by Unilever plc (ADR) (NYSE: UL) in 2000, while Haagen-Dazs was acquired by Pillsbury in 1983, now a unit of the quite pedantic General Mills, Inc. (NYSE: GIS).

How is it that two ice cream companies that share so many similarities -- the same size and shape package, the same commitment to quality of ingredients, the same fierce attention to (and careful culling of) flavor rosters, the same expectations (that you'll eat a good portion of the pint in one sitting, probably alone), the same prices -- be so different? To an outsider who understood nothing of the singular pleasure of dipping a spoon into a fresh-from-the-freezer pint of a favorite flavor, well, you'd think the brands were interchangeable; that a given consumer would choose one over the other based only on the weekly specials at one's neighborhood grocery store. Au contraire, or as they say in Vermont, no way man.

Right this moment (I imagine), a flavor expert somewhere deep in the Vermont offices of Unilever ADR (NYSE:UL) unit Ben & Jerry's is asking a very, very difficult question: What does a celebrity taste like? And which celebrities do we even want to associate with vanilla ice cream, raspberry swirl and brownie bits (that would be Dave Matthews) or fudge-covered waffle cone pieces, ripples of caramel, and the patriotic vanilla ice cream (yep, Stephen Colbert).

BloggingStocks may be the only organization brave enough to wonder, should Jerry Garcia really taste like cherries and fudge? and which celebrities are the ice-creamiest? Does anyone buy the ice cream just because they like the celebrity, and, isn't that a bit weird? Do you want to taste the people you most admire? And is this all a liberal hippy conspiracy to keep ice cream Democratic?

Let's begin by exploring where this whole celebrity-ice cream flavor thing started: Jerry Garcia. He and his band the Grateful Dead, well, let's just say that may have been where the term "groupie" started. People who love the Grateful Dead, they love the Grateful Dead. Oh, my, lord. So for the liberal (and then independent) company to name a flavor after the hippiest of all hippy icons, well, totally made sense. Are you familiar with the history of celebrities and ice cream? If you do, you know that Cherry Garcia was the first ice cream ever named for a rock star, and appeared in 1987 at the suggestion of two deadheads from Portland, Maine.

Because I'm very serious about my work, I sent my husband out in the dark of night for a quart of Cherry Garcia, the flavor that started it all, and the number one flavor on Ben & Jerry's flavor roster. Cherries and "fudge flakes" (which seem very much like "pieces of chocolate" to me, but I'm not the one describing the flavors on the package) are mixed into cherry ice cream. Does Cherry Garcia deserve its place on the top of the roster? And is it because of the taste of the ice cream, or the connection with the band?