Saturday, July 2, 2011

Transitioning with the A/C

Today I caved and did something I've only done a few times over the last four years: I turned on my air conditioner. It's not particularly stifling according to the thermometer, but after 24 hours with a heat index in the mid-to-upper nineties, it was steamy inside my house. The six of us (including one 90-pound, long-haired dog) were starting to wilt.

This moment of weakness seems an especially grave sustainability sin because it occurred, unwittingly, during Power Down Week, when local sustainers are challenged to "make their carbon foot print as small as they can" from June 25 to July 3. The week concludes with Energy Independence Day at Gordon Park in the Riverwest neighborhood of MKE. I've been away from my computer a lot these last few weeks, working on various gardening projects, so I missed the Power Down announcements on Facebook and various e-mail lists.

Though using my A/C (especially during Power Down Week) may hurt my eco-cred, I don't feel too guilty about it. Why? Because to me, this is what transitioning to environmental sustainability is all about. I fear that for some, sustainability can become a "more radical than thou" sort of exercise, a kind of competition to see who can tough out a higher degree of energy independence. Don't get me wrong – the fewer fossil fuels a person uses, the better. And events like Power Down Week offer fun ways to raise awareness about the transition movement. But the extremism required to suffer through a heat wave without A/C doesn't come naturally to most Americans, who have been coddled by comfort and convenience for generations. Can those blessed with A/C realistically be expected to revert to nineteenth century discomfort overnight? Judging by the responses of many of my A/C-loving friends to the concept, I think not.

Enter the transition movement, a philosophy that emphasizes weaning oneself off of fossil fuels. This is the concept behind Transition U.S., which posits that "life with dramatically lower energy consumption is inevitable, and that it’s better to plan for it than to be taken by surprise." It seems clear that fossil fuels like oil and coal -- extremely potent sources of energy that have powered the pace of human progress over the last 150 years -- are unsustainable resources, especially at the rate we are using them. And yet, to a certain extent it is unrealistic to ask Americans to quit their fossil fuel addiction cold turkey. That might be possible for a radical minority, but not for the masses. With this in mind, should the more radical among us simply shake our heads sadly and wait out the end of the modern world in our wind-powered eco-villages? Or should we take the hands of our less willing friends and families and help them baby step toward sustainability?

Having many reluctant transitioners among my loved ones, I choose the latter option (though the former does have its appeal). That's one part of the reason I turned on the A/C today. Sure, part of it was because, after a sleepless night dousing my head in cold water every half hour, I reached such a point of overheating that I could not function normally. But instead of toughing it out until the cool air returned, as I've done in the past, I chose to use the perfectly good air conditioner I own, if just for a day or two. Doing so, I feel, helps keep me honest and human. It helps me to empathize with those who don't think they can lead more sustainable lives because they don't want to give up their creature comforts. It also helps me to strike a balance. I can enjoy the A/C when I really need it, while also turning it off as soon as the extreme heat passes.

To me, this is the essence of transitioning. The Transition movement is about using the resources we have more sparingly, more judiciously. It is about slowly adjusting to a slightly less comfortable existence. For me, transitioning means keeping the thermostat set at 63 to 67 degrees in the winter, instead of 75. It means mowing half my lawn with a manual "reel mower" and the other half with a gas-powered machine. It means using both rain barrel and municipal water to hydrate my gardens. And it means only turning on the A/C when there is a heat index above 95. Transitioning makes our conversion to energy independence slow but sustainable. It is a luxury we now have while energy is still relatively cheap and readily available.

Part of transitioning involves "powering down," a little bit at a time. Another part involves shifting from using fossil fuels to using sustainable energy sources. This can be difficult for those of us who lack the funds to purchase wind turbines or solar panels. Thankfully, we can support renewable energy to fuel our A/Cs, furnaces, lighting and appliances by participating in WE's Energy for Tomorrow program. For $10 a month, a household can help fund WE's use of renewable energy (biomass, hydroelectric, solar, and wind), reducing carbon dioxide emissions by 15,264 pounds annually (and reducing waste of limited fossil fuels). Our family just enrolled. We are thrilled to know that when we cave and power up instead of down, we're supporting renewable resources when we do so.

Want to learn more about the transition movement? Here are a few more resources you might find helpful:

Green Neighbor
Sign up for the Energy for Tomorrow program through the Green Neighbor website and get a $5 gift certificate to Alterra Coffee!

Sustainable Tosa

Transition Milwaukee

Wauwatosa Energy Committee

WPR interview with Patricia Benson, Board Member, Transition U.S.

Thursday, June 9, 2011

Vanishing Bees

Growing up, I was absolutely terrified of "bees," the name I used for a variety of tiny monsters with dreaded, piercing stingers and stripy yellow and black backs. I was destined to get stung, I reasoned, if one of them came near me. As a child I was always afraid of any creeping, crawling thing, but my exceptional fear of bees and wasps was sealed when I was about seven years old. One evening, I bolted outside the second the last bite of dinner was consumed so I could ride my bike in the waning hours of daylight. As I pulled my bike out of the garage, I unleashed the wrath of a yellow jacket. It chased me up the sidewalk until my hero arrived: Jack, the burly tough-guy next door, who lifted one gigantic work boot and smashed the creature underfoot.

I spent my entire childhood running in this manner from bees and their kin. While conventional wisdom holds that a person confronted by a bee should stand like a stone, lest flailing arms and screaming scare an insect into stinging behavior, I held firm to my own belief that running was a more effective evasion method. And it did work for me – over the three and a half decades of my life I have never been stung.

I held on to my fear of nearly all creatures of the order hymenoptera for a very long time. That fear worsened as I grew up and read books like A Taste of Blackberries, in which a young boy dies from an allergic reaction to bee stings. My grandma is allergic to bees, so I figured that I might be, too. All the more reason to flee on sight of any yellow-and-black-backed insect.
A few years later, I met my husband, a man with almost no fear of bees. He spent hours as a boy trying to capture them with honeyed jars and, unlike me, was able to distinguish between a honey bee and a yellow jacket wasp. When we were hiking and confronted a fuzzy bumble bee, he'd try to pet the thing. I later had three children by this man, and amazingly, they displayed the same bee-loving behavior. My firstborn daughter so loved the little creatures that she continued to try to capture them as pets, even after she was stung.

Having children who spent hours at play turning over rocks in search of arthropods piqued my own curiosity about all insects, including bees. So I bought an insect field guide and began to learn the difference between the "gentle giant" bumble bees and the aggressive hornets. I learned that the horrifying Ichneumon wasps with their excessively long stingers have no interest in humans (their "stingers" are actually ovipositors used to inject eggs into the insect prey they parasitize). The more I learned, the more my fear melted away. That fear was replaced by enchantment, curiosity, and fascination. My husband's macro-photos of insects, including various bees, helped me to see the beauty of their world. Here's one of his photos, of a bumble bee pollinating a flower:

Photographer: Steven T. Zydek

Soon, I became interested in honey bees in particular, due to their manifold virtues. Honey bees are amazing creatures. They are organized in a way that suggests high intelligence, though their human-like civilization is more innate than learned. Bees are crucial pollinators. Without them, many of our most prized fruits would not, well, come to fruition. And of course, bees provide us with delicious honey and fragrant, useful beeswax. The more educated I became about these creatures, the more I loved and respected them.

Naturally, then, I was disheartened to learn about the recent rise of what has been dubbed Colony Collapse Disorder. Honey bees, it seems, are disappearing. CCD is a mysterious and potentially disastrous dilemma. Bees aren't simply dying overnight, leaving their corpses in mounds around their hives. If this were the case, perhaps it would be easier to trace the source of the problem. Instead, worker bees – the small female honey bees that collect pollen to feed their young and care for the queen -- are simply disappearing, flying off in confusion and dying when they can't find their way back to the hive. The disappearance of workers ultimately causes a hive to collapse over a span of a few months.

Many theories have been bandied about as to why the bees are disappearing, from climate change to cell phone radiation to industrial beekeeping methods and even supernatural phenomena. A couple weeks ago a study was released that again pointed the finger at cell phones as the culprit, indicating that their signals are confusing and killing bees. So stated this article shared across social media.

But cell phones are not the real cause of CCD, say beekeepers interviewed in Vanishing of the Bees. We recently viewed a screening of the documentary at Unity Church in Wauwatosa. The film largely blamesneonicotinoid pesticides as the cause of CCD. These chemicals work not by being sprayed on the leaves of crops, but within the system of the plant (hence the name "systemic pesticide"). Theorists point to treated plants as having a detrimental effect on bees, who do not die instantly after exposure but bring tainted pollen back to the hive. Over time, larval bees, who have been reared on toxic pollen, grow up confused and disoriented and are eventually incapable of leaving the hive without wandering too far and dying.
Abroad, some beekeepers and apiarists are so certain of the link between systemic pesticides and CCD that they have worked to successfully ban neonicotinoids. Cf.http://www.epa.gov/opp00001/about/intheworks/ccd-european-ban.html and http://www.bayer-kills-bees.com/.

In the U.S., the Environmental Protection Agency will not take a strong stance against neonicotinoids as the cause of CCD. They say research isn't conclusive enough to institute a ban. Why? According to the film, studies conducted by chemical companies stating that neonicotinoids were not harmful to bees (adult bees did not die within a few days of exposure to these pesticides) were submitted to and accepted by the EPA as proof that these pesticides are not causing CCD. Here's the EPA's statement on the issue.

Whatever the cause, if CCD continues it may have a devastating impact on humans, as well as bees. According to the film, bees are required to pollinate a third of the food we eat, from fruits to tree nuts and many things in between. Without ample honey bees, farmers are required to ship bees out of state to do the pollinating of select food crops, causing food prices to rise. Without any bees, we will simply not be able to enjoy many fruits, nuts, and seeds. Can you imagine a world without apples? Pumpkins? Sunflowers? It boggles the mind to think of the impact of the death of honey bees. In addition to the threat to many of our staple foods, Colony Collapse Disorder is perhaps symptomatic of environmental toxicity that is bound to have an effect on all life – human included.

What can be done to stop the death of bees? Until the cause of CCD is determined, it may be difficult to completely eradicate the problem on the residential level. That said, there are things any citizen can do to help protect bees. Find (or host) a screening of a documentary like 'Vanishing of the Bees' or the similar film Queen of the Sun. Plant bee-friendly plants in your yard, like sunflowers, pumpkins, and bee balm (Monarda). Cease from killing dandelions and clover in your grass – they are important food sources for pollinators like honey bees. Commit to keeping your yard chemical-free. Don't fear honey bees – they help us survive and make the world a beautiful and healthy place. They rarely sting humans unless bothered. Take a beekeeping class through the University of Wisconsin Extension's Urban Apiculture Institute. Lobby the government and the EPA to work harder toward finding the cause of CCD.

Finally, and perhaps most importantly, educate yourself about insects. Know your bee and wasp varieties and avoid killing honey bees (if you see a swarm, DO NOT spray it with pesticides – most people fail to realize that bees are at their most tame when they are swarming. Call a local beekeeper and he or she will collect the bees for you). As citizens we have to stop believing the hype about "bugs" and learn to tell the difference between beneficial insects (without whom would mean certain death for humans) and true "pests."

Here are a few more bee-related resources:






Wednesday, May 25, 2011

Accidental Hot Composting

In my last blog post, I shared some of my knowledge about composting in honor of International Compost Awareness Week. I began composting in 1999, when I bought my first bin (something along the lines of this). Composters like my first bin are often touted as a way to achieve "hot composting" – the black plastic container absorbs heat, or so the ad copy goes, thus encouraging organic waste to "cook" into rich black compost.

As I explained in the aforementioned blog post, hot composting occurs when wastes rich in carbon and nitrogen are mixed in the right proportions (30 C : 1 N). A few scoops of soil or finished compost (for the microorganisms within) are thrown into the mix. The pile is kept moist and well-aerated and, if one is lucky, the bacteria in the pile will begin to consume like maniacs. They eat and breed in such a frenzied manner that they generate heat in the process. This heat is a sign that waste is breaking down rapidly.

I have no idea if my first compost bin really worked – sure, the waste I put inside broke down, but when I tried to remove it a year later the receptacle fell apart, and I never really found out if the compost heated. This is consistent with stories I’ve heard from other gardeners who have invested in expensive plastic composters only to find they broke or collapsed after a year or two of use. While not all of these bins bust so quickly, they can fail to deliver in their promises to cause the kind of heating that creates crumbly black "Gardeners' Gold" within three months’ time.

A few years after my disappointing first run with hot composting I opted to try passive composting. With passive composting, you basically throw stuff in a pile and let it rot for a year. You don't aerate by turning the pile, nor do you water the pile; you simply let nature take its course and enjoy a small amount of compost each spring. In 2003, my father-in-law built me a two-sided bin with an open top, removable wooden slats in the front, and chicken wire sides. I've been passively composting ever since, harvesting compost once a year.

That is, until about two weeks ago. That's when, despite the cold and rain, I discovered that my “passive” pile out back had accidentally become a hot pile – so hot, in fact, that it has been steaming for over a week. Here's a photo in which I almost captured the faint vapor rising one cold morning when I dug into the pile:





A hot compost pile is desirable because (A) heating causes compost to form much faster – it only takes about three months; (B) the quality of the compost is higher because of all the additional microbial activity encouraged; and (C) weed seeds and pathogens are "cooked" through the pasteurization process that takes place in the pile.

Accomplishing hot composting can be tricky. Most believe they fail to generate heat because their pile isn’t getting enough sun or warmth, though my case is proof that these variables have little to do with hot composting. My pile is in a shady spot in the back of my yard, next to an ash tree. The day I first found it steaming it was about 45 degrees Fahrenheit, extremely windy, and overcast. Not exactly the scorching day you'd expect would cause yard waste to heat. Nor is my bin made of heat-absorbing black plastic, which many companies claim is an important factor in successful hot composting (cf. this model, which advertises that "this high-performance tumbler is made of 100% recycled plastic in a heat-absorbing black color which helps compost 'cook'").

I'm not 100 percent sure what I did to cause my pile to heat, but I do have some theories:

(1) The pile is big. The whole thing is at least 3’x 3’x 3’. I'm not sure if it's absolutely necessary to have a big pile in order to achieve hot composting, but it certainly helps, for two reasons: one, the greater the variety of waste I throw on the pile, the more I increase the likelihood of balancing nitrogen to carbon, and two, the more waste, the more for the microbes to eat. I currently throw any and everything I can compost into the bin, from yard waste to kitchen scraps (my own and those I’ve collected from neighbors and, occasionally, local restaurants). I throw in large amounts of dried weeds and dead leaves from the yard (for the carbon) as well as buckets of moist, nitrogen-rich kitchen scraps. This helps me get closer to striking that important carbon to nitrogen balance of 30:1.

(2) The pile has LOTS of sticks in it. In the past I omitted the sticks, as they take a very long time to break down and are a pain to pick out of my passive pile once a year. HOWEVER, I learned in my Master Composter class that sticks, because of their size, create necessary pathways in the pile for air. So I allowed a number of sticks of various sizes into the pile, which I believe helped to aerate it, thus reducing the need for turning (something I seldom do).

(3) The pile is very moist due to ample rain. One of the main reasons folks’ piles don’t' heat is because they dry out, especially mid-to-late summer. Compost piles need to be watered when it's not raining – especially if they contain a lot of carbon-rich materials like dead leaves. It has been raining a lot this spring – which has limited the amount of time I’ve been able to spend in the garden, but has worked wonders on my compost pile.

Of course, my happy composting accident has me revved up to try intentionally hot composting. So lately I've been checking the pile daily and have even started turning it with a pitch fork. It’s so fun to see all the black crumbly compost steaming in the center of the pile. If my hot pile keeps working so well I’m sure I’m going to have compost by mid-summer, which will offer a nice pick-me-up for the veggies and herbs growing in my raised beds.

Do you have a question about composting or a composting success to share? E-mail me at gardensnotgarbage@gmail.com or leave a comment below. Or, stop by the Tosa Farmers Market on Saturday, May 28 at 11 a.m. and learn about composting basics at the Historic Little Red Store (7720 Harwood Avenue).

Thursday, May 5, 2011

Do You Compost?

If your answer is yes, you have my permission to skip reading this blog post.

If your answer is no, I'd like to make a special appeal to you: consider engaging in the simple, delightful process of turning organic "waste" into the resource it really is. This is International Compost Awareness Week, and in honor of the event, I'd like to challenge you to make a bold move to cease throwing kitchen scraps into the trash and instead give composting a try. In doing so you'll discover for yourself how magical (and how easy!) the act of composting can be.

Composting is magical because it takes garbage and turns it into a useable product – compost, also known as "humus." Humus is a crucial but often lacking component of healthy soil. Adding compost to the earth reduces the need for commercial soil amendments, as well as manufactured chemical fertilizers that can run off our properties and into the rivers and lakes, polluting our water supply. Compost adds nutrients and micronutrients to depleted soil, helps soils retain moisture, and reduces erosion. This allows us to grow healthier plants, from vegetables and fruits to native flowers and even grass. It can act as mulch and side dressing and can be used to make "compost tea." Compost can be purchased, of course, but it is virtually free, after start-up expenses, once you begin converting your own kitchen waste into this natural resource.

And composting really IS easy. There are three main ways to compost -- choose your favorite. The bottom line is that anything you do to return resources to the soil, rather than send them to the landfill, is an important contribution to environmental sustainability.

The first method of composting I'm going to discuss is probably the most well-known. Hot composting is a technique whereby your aim is to "cook" your vegetable-based waste. Food scraps heat and thus break down faster into compost. Contrary to popular opinion, a pile doesn't necessarily heat because of the sun or summer temperatures. It heats when beneficial composting bacteria go to work inside a pile, heating it to degrees upwards of 160 F. This pasteurizes the pile and creates high quality compost quickly – the total turn-around time is about three months when a pile properly heats.

While this is a fantastic composting method, it can be tricky to get a pile to heat. Heating requires a carbon to nitrogen ratio of 30:1 in the waste. Carbon rich materials include things like dead leaves and hay. Nitrogen rich materials include fresh-cut grass, vegetable scraps, or manure. Many say a good rule of thumb is to mix two parts carbon-rich "brown" materials with one part nitrogen-rich "green" materials. In order to heat, the pile also needs to be adequately moist (about as wet as a wrung-out sponge) and it needs to good oxygen flow – aeration is encouraged through regular turning of the pile.

Sounds fun, doesn't it?

Um….sort of? I know I don't have time to do all these things. I would, of course, LOVE to see my big ol' pile out back get so hot it steams, but I know accomplishing this is no small task.

An alternative is what is called "passive" or "cool" composting. This is the outdoor composting method of choice for those who are extremely busy – or just plain lazy. I think I may have one foot in each of those categories, which is why this method works so well for me. The main difference between hot and passive composting is the amount of work that goes into it – and the amount of time it takes to create usable compost. For my pile, I simply dump waste into the bin. I try to layer the types of waste I add – for example, if I dump in nitrogen-rich veggie and fruit scraps I will cover them with carbon-rich dead leaves. I do this to help the carbon-nitrogen balance and to cover any offensive-smelling waste that might attract flies. Occasionally I will also turn the pile, although I admit I don't do it often enough to call it "hot" composting.

Interestingly, right now my pile is so big that it seems to be heating, despite my laziness. If it heats, it will compost faster. Otherwise, the compost from a passive pile is typically ready in six to twelve months. I usually harvest compost in late spring, just as I'm preparing my vegetable beds.

One caution: if you choose passive composting, avoid adding weed seeds to your pile. Though most weed seeds will be destroyed by heating, without the heat the seeds may survive the composting process and end up sprouting in your gardens.

The third method is worm composting, AKA vermicomposting. I've written about in the past on this blogand I own a small vermicomposting supply business; I encourage you to peruse those resources if you want to learn more. Vermicomposting is my favorite composting method, simply because it's fast, can be done indoors year-round, and produces a superior compost that plants love. Worm composting creates finished compost in approximately two to four months.

With all three methods, avoid adding meat, fish, poultry, dairy, and other animal products, as these wastes create offensive odors and can attract pests. Also avoid adding heavily processed and salty foods, charcoal briquettes and ashes, and dog and cat feces. Paper products are OK – throw those coffee filters and paper towels in with your fruit and vegetable waste. They'll break down quickly in a compost bin of any kind.

As for composting systems, you can invest in an expensive commercial compost bin, and if you want to do this, more power to you. Just make sure you read as many user ratings as possible before spending money so you have an idea of what to expect. Of course, you do not have to buy an expensive commercial bin to compost. There are plenty of plans for bins, ranging from a simple cylinder made of chicken wire to more complex wooden systems. You can also use concrete blocks to build bins. The Wisconsin DNR has a nice site with composting resources, including info on types of home composting bins. Check it out.

My passive bin is made from scrap wood and chicken wire, which allows for decent air flow around the pile. Wooden slats in the front slide up and out when the time comes to remove the compost. The two sides allow me to focus on adding waste to one side at a time; when the first side is ready, I remove any unfinished materials and place them in the other side, then begin adding new waste to the second side.




If you are unable to compost yourself, you may be able to find a neighbor to help you. I use my large bin to help neighbors compost. I also feed neighbors' waste to the thousands of red wiggler worms that eat garbage in my basement.

If you can't find a neighbor to help you compost, locate a community composting collective, like the Milwaukee Community Compost Network. Or, start a collective yourself.

If you have a big composting bin and not enough waste to fill it, you might consider offering to compost for your neighbors. You can also try to compost for local restaurants and grocers. There are many possibilities for composting. By working together, every community can turn their garbage into gardens!