Monday, February 28, 2011

What is "Clean" energy?

Let's face it. With climate change on our hands, the world edges ever closer towards environmental catastrophe. I'm sure you've heard plenty of it- ice caps melting, species dying out, deserts expanding, storms pounding our coastlines, and Miami disappearing beneath the waves. But enough of our impending destruction. I think I've made my point clear. Regardless of your political or environmental stance, you're probably sick of all the gloom and doom stories.

Indeed, humanity possesses both the knowledge and resources to combat climate change, slow it down, and reduce the disaster to something manageable. According to Jeffery Sachs (writer of Commonwealth: Economics for a Crowded Planet) we clearly have the brains and technology.

This said, I'd like to discuss what is meant by "clean" technology. More often than ever, you'll see the eco-friendly label on products. You'll see "green" options everywhere. Shade-grown coffee. Organic dish-soap. Biodegradable egg cartons. Energy-saving light bulbs. I think it's great- and for sure, the success of these products is wonderful, but one must still remember that we live in a consumer-based society. Businesses have and always will be motivated by profit, even if it comes at the expense of others. Now this is not to say that all energy companies are run by evil, selfish, money-hoarding capitalists- but in this day and age, one should always be aware of greenwashing schemes.

This brings us to the question: What's the cleanest source of energy we can afford? Pushing all business-related bias aside, you'd think the answer would be easy. It's not. Like Newton's first law of physics, every action of mankind has an opposite reaction, or in other words, a trade-off.

The drawbacks associated our use of oil and other fossil fuels is pretty clear, so I won't go into that too much.

Nuclear energy, despite being a relatively clean source of fuel, comes with a whole array of negative associations, such as Three-Mile Island, the Chernobyl Incident, and the possibility of all humans turning into flesh-eating zombie-mutants after exposure to radiation.

Hydroelectric energy has always presented environmental problems where building dams are concerned. Not only do dams disrupt the natural flow of rivers by flooding certain areas, but they also jeopardize the existence of certain fish and aquatic creatures by altering their habitat, separating populations, and preventing them from dispersing.

Even some of the most innocent-sounding, "eco-friendly" sources of energy have their trade-offs and drawbacks. According to the American Bird Conservancy, 10,000-40,000 birds die every year in the US from collisions with wind turbines. Although this is a small number compared to the millions that die yearly from window collisions, it's still important to consider when building wind farms along major migratory routes.

Solar energy is an amazing concept- I yearn for the day when every house and car has its own solar panels. Right now, however, it just so happens that our country's largest source of solar power comes from the Mojave Desert, whose fragile ecosystem will most certainly be imperiled by upcoming development for new solar projects. In fact, I was just reading a New York Times article about how solar energy companies in Southern California now face legal challenges based on environmental grounds.

So in any case, my point is this: As awesome as a new source of energy may sound, it's always best to study trade-offs before implementing it. Nuclear's fine, as long as it's well-contained. Wind farms are great, but not next to a bird sanctuary. You get the picture.

Monday, February 14, 2011

Native Plant Gardening

For the past two years, I've been transforming my yard into a native wildflower garden, and now that the snow is finally melting, it looks like I'll finally be able to resume gardening where I left off before winter.

Even though early spring is sort of an "ugly season" with all the dirty snow melting and freezing up again, exposed mud, decayed leaves and grass, and debris that was previously buried under snow, I cannot express how exciting the next few months will be for me. By mid-march (about 3 weeks from now), I'll be seeing my garden gradually come back to life, and perhaps find a few surprises. As you would guess, I've spent hours collecting wildflower seeds and sowing them into newly-dug patches this fall. Now- with a whole new generation of seedlings sprouting- I may finally see some of those efforts pay off.

Gardening with native plants is something that I recommend to everyone, regardless of income, yardspace, or gardening experience. In a world where habitats and ecosystems are increasingly being destroyed by development, the need to restore plant communities plays a crucial role in conservation. Although you might think habitat restoration and improvement would require thousands of acres to be effective, you'd be surprised at how much wildlife benefits from a single acre of native plantings. If you ever decide to plant a few black-eyed susans, coneflowers, and goldenrods, you'll already be attracting countless butterflies, moths, bees, and flower-flies. Planting bushes and shrubs in your yard may also attract small animals and birds seeking shelter. Sometimes an action as simple as not mowing the grass for a few weeks will bring wildlife to your yard.

Most suburban neighborhoods are biological deserts. The neatly clipped lawns and non-native shrubs are not only useless in ecological value, but are often hard to maintain, as they require loads of water, fertilizers, and other resources to keep them healthy. Native plants, on the other hand, require very little upkeep. They're beautiful, inexpensive, and save you plenty of time and resources.

So how do you grow a native plant garden? There are two methods:

One is to simply buy native plants. For many beginner gardeners, this is the easiest way to go. With increasing trends towards native landscaping, many garden stores and nurseries now offer native plants for sale. Here, you'll find popular species such as Black-Eyed Susans, Virginia Bluebells, Trumpet Creeper, asters, native grasses, and liatris species.

Not every nursery sells native plants, however- and even if you do buy from these sources, your selection of plants is often limited. From my experience, there are plenty of fantastic, beautiful, and easy-to-grow plants that most garden shops and nurseries don't even offer. On more than one occaision, i've asked plant store employees if they had any Boneset in stock (a common white-flowered plant that is similiar to goldenrod) and they had no idea what I was talking about.

In this case, you may just want to save money and purchase seeds from Mother Nature herself. For common plants like goldenrod, milkweed, and certain kinds of asters, it's perfectly acceptable to take a few seeds or cuttings from nature every now and then. Although I typically operate on this mode of collecting, you must ALWAYS use good judgment when doing this. When collecting seeds, never take more than you need. Always ask for permission before collecting on public or private lands. Avoid taking whole plants whenever possible. For natural areas about to be torn apart by construction, there are plant-salvaging groups that will actually "rescue" plants and occaisonally give them out to people who are willing to grow them.

And lastly, before you take ANYTHING from the wild, ALWAYS, ALWAYS, ALWAYS know what you're doing. Some plants, as you may figure, do not fare so well in gardens. Furthermore, you don't want to yank up any endangered species. For some flowers, such as the Prairie White-Fringed Orchid, their existence is already threatened by overcollecting.
Happy gardening! (I know it's a bit early...but seriously...I've got maximum Cabin Fever right now)

Monday, February 7, 2011

Was Shakespeare a Birder?

Hello everyone! For those of you who survived the insane blizzard last week, I hope you're doing well in spite of the weather. With a few extra inches of snowfall tonight, a high of 12 degrees tommorow, and freezing temps for the rest of the week, it doesnt look like our snow is going anywhere (at least in the midwest).

In any case, I've been using the extra time indoors to read up on Hamlet and some of William Shakespeare's other works.

Once you're able to see past some of Shakespeare's difficult language and seemingly undecipherable phrases, his writing is truly outstanding. Religious texts aside, Shakespeare's works may be some of the most influential literature of all time. Cultures from around the world have adapted versions of Shakespeare's plays. A suprising number of nuances that we use in our everyday language come from Shakespeare. The theme of "star-crossed lovers", which Shakespeare used for Romeo and Juliet, is now the basis of almost every romance novel or movie.

Aside from brilliant plot elements and universal themes, Shakespeare's plays are filled with clever metaphors, allusions, and "pop-culture references" for his time.

Among the various things Shakespeare refers to, birds definitely seem to be a favorite subject of his. Not only does he refer to the generic birds like "dove" or "eagle", but he actually mentions over 45 species throughout his works. Most are common British species, such as blackbirds, robins, skylarks, but among these, there are definitely some obscure ones.

-In King Lear, there's mention of Choughs and Jackdaws- which are both relatives of crows.

-Woodcocks are mentioned in a number of plays. These plump, supposedly delectable birds dwell on the forest floor, and due to their habit of freezing rather than flying from danger, they are particularly easy to catch. Indeed, I've seen woodcocks in the wild, and nearly ended up stepping on one almost every time. If you just look at a picture of one, they appear rather silly, with huge eyes, fat bodies, and an oversized beak.
-The "Night-Raven" that Shakespeare mentions in Much Ado About Nothing is actually a Bittern- a shy, nocturnal heron that is rarely glimpsed by people.

-Lapwings are a species of plover, whose young are usually able to get up and run around within minutes of hatching. Hence, Shakespeare writes "This lapwing runs away with a shell on its head" (Hamlet).

-The Wryneck, which is mentioned in the Merchant of Venice, is a particularly odd one. The bird itself is a rare, but generally widespread relative of woodpeckers. According to Wikipedia, its Latin name, Jinx torquilla, comes from the use of this bird in medieval witchcraft.

-Tercel, estridge, and staniel are actually falconry terms, which are used to describe falcons as we would use colt, foal, mare, or stallion to describe a horse.

-I particularly enjoy the birds known as wagtails, and nearly laughed out loud after reading "Spare my grey beard, you wagtail!" from King Lear.

-And of course, there's the European Cuckoo, which not only mocks married men with its call, but also lays eggs in the nests of other birds (forcing them to care for its monstrous, oversized young).

Although you may think these mentions of birds are nothing more than little flowery details, they contribute a great deal to Shakespeare's plots, and moreover, the modern world. In the late 1800's, a Shakespeare fanatic named Eugene Schieffelin decided to bring every bird mentioned by Shakespeare into New York City. After bringing finches, larks, and nightengales overseas and unsuccessfully trying to introduce them, Eugene released 60 European starlings into Central Park, thinking that they'd make great music and pest control. Unfortunately for us, starlings quickly spread across the continent, and now number in the hundreds of millions. Along with pigeons and house sparrows, they are considered an invasive species in North America, and have been shown to displace native cavity nesters such as woodpeckers and bluebirds.