Change at the Grass Roots

 

It may seem like hyperbole to compare growing a lawn with smoking (not combining the two, as in smoking grass), but when weighing the environmental and health effects of both rather useless activities, they may not be all that dissimilar. A lawn is purely ornamental and serves no practical purpose when it is not used as pasture for grazing animals. Deer may come out of the woods to clip parts of a suburban lawn, but for the most part keeping a lawn within the height limits deemed proper by neighbors is left up to the homeowner. Anything higher than about six inches meets with disapproval from neighbors and, in the case of a homeowners association rules, may merit a written slap on the wrist.

 

There was a time not long ago when most people smoked, and smoked everywhere. Movies of contemporary stories from the 1940s and 1950s showed actors portraying their characters as human chimneys. Few people thought much of it up until 1964, when the Surgeon General issued a report on the dangers of smoking. Even then, it took another generation for the momentum of social disapproval of smoking to build to a tipping point, largely because of the obstructive practices of the tobacco industry. In the matter of lawn growing, the balance is now tipped in favor of the people who dump fertilizers and broad leaf herbicides on their lawns to achieve an ideal of carpeted green perfection, and then burn up fossil fuels in order to keep that exuberant growth clipped to a manicured standard.

20101020 Sheep shepherd at Vistonida lake Glikoneri Rhodope Prefecture Thrace Greece
Sheep, goats, and a shepherd near Lake Vistonida in Thrace, Greece. Photo by Ggia.

Gras
Grass, with buttercups. Photo by Steffen Flor.

Given the information available about the toxic effects of fertilizer and herbicide runoff, and the deleterious effects on the climate of continued burning of fossil fuels, it seems insane to idealize the perfect lawn and what it can take to achieve perfection. Yet as things stand now, the people with model lawns are the ones who look down on everyone else and appoint themselves as standard bearers. Perhaps if more people understood the destructive effects to their own health and to the environment of all their fussing over lawns, then the balance would start to tip the other way toward saner practices.

When homeowners apply fertilizers and herbicides to their lawns, there is no obvious puff of smoke to notify everyone else of the activity. It is not as obvious then as smoking, and therefore general social disapproval will take a long time to build, and may never build to a tipping point the way it did with smoking. Education will probably be the main factor in changing people’s behavior. There are state laws which require commercial herbicide or pesticide applicators to post signs on lawns they have treated. Those are the 4 inch cards on sticks stuck into lawns, and to the extent that most passersby and neighbors give them any attention, they can easily mistake them as advertisements for the lawn care company.

The opening scene of Blue Velvet, a darkly satirical 1986 film directed by David Lynch. Besides demanding large amounts of fertilizers and herbicides to look their best, lawns gulp huge amounts of water in order to stay green throughout the warmest months.

Most people are away at work when lawn care companies do their treatments, and so they aren’t around to catch a whiff of the cabbage smell of the typical broad leaf herbicide as it drifts around the neighborhood. And of course, the homeowner who does his or her own applications, usually on the weekends when neighbors are also home, does not bother with any formal notifications at all. A neighbor might ask such a homeowner “What’s that smell?” To which the enterprising amateur lawn care enthusiast might reply, without apparent knowledge of or concern about the collateral damage of his or her efforts, “That’s the smell of the green, green grass of home!”
— Izzy

 

Why Worry

 

“Gardening is the handiest excuse for being a philosopher.”
― from Ray Bradbury’s 1957 novel Dandelion Wine.

There is no end to the availability of advice, how-to manuals, and chemical poisons to help gardeners rid their lawns and garden beds of crabgrass and dandelions, two weeds most prevalent in late spring and early summer. Are they weeds? Only the individual gardener can say. If the gardener lives under the watchful eyes of a homeowners’ association, the association will say.

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A meadow full of dandelions in The Netherlands; photo by Alias 0591 from The Netherlands. A meadow full of crabgrass would not be nearly as beautiful.
The guidelines of Integrated Pest Management (IPM) state that a pest is what the gardener says it is, whether plant or animal, and that each gardener has a tolerance level for pests. Those with zero tolerance spend a fortune and a lot of time pouring poisons on crabgrass and dandelions in an effort to eradicate them. Have they been eradicated? Maybe on a few tiny patches of the planet which are now toxic spill zones.

 

Mow high! That’s the cry which often goes unheeded because some folks don’t like walking through tall grass. Mowing high really does help desirable grass compete with weeds like dandelion and crabgrass, however, and if the grass is kept healthy with applications of compost and lime, so much the better. The main thing is to keep bare spaces to a minimum, because those are the places where weeds can move in and start to take over. Keep the applications of synthetic fertilizers to a minimum, or do without the stuff altogether, because in the long term they contribute to soil toxicity.

What’s a conscientious, organic (or mostly so) gardener to do then in the good old summertime when there are patches of crabgrass and dandelions in the lawn? Well, if an hour’s worth of hand weeding once a week won’t take care of the situation, maybe that mostly organic gardener could consider turning some of that lawn on the property over to some other purpose, so that it’s more manageable. Either way, the situation calls for a more relaxed tolerance level, especially in the summer. A suggested tolerance level would be one that calls for lying in a hammock under a shade tree, drinking from a cool glass of dandelion wine, reading a good book (see above), and listening to the peaceful sound of the crabgrass growing.
― Izzy

From 1988, “Don’t Worry, Be Happy”, by Bobby McFerrin, with Robin Williams and Bill Irwin along for the clowning.

 

What’s the Frequency, Kenneth?

 

It’s fair to say subscribers to cable and satellite television services dislike their providers in large numbers due to high prices and poor customer service. With the option of internet streaming television service becoming more popular every year, cable and satellite subscribers are increasingly resorting to getting their television service the newest way and dropping the old service, though ironically they can sometimes still be tied to the cable company because it provides their internet service. For some people, particularly those with a low bandwidth limit on their internet service, the oldest way of getting television service can be the best, which is to say receiving broadcast television with an antenna.

 

Family watching television 1958
Family watching television, 1958; photo by Evert F. Baumgardner.
What, no rabbit ears? They must have had a rooftop antenna.

 

There is no such thing as an HDTV (High Definition Television) antenna except in the minds of marketers and confused consumers. An antenna is an antenna is an antenna. Standard definition and high definition digital signals are merely the format of the content that TV stations broadcast, not the method. The method is the same as it was when the format content was analog, and that is electromagnetic frequencies in the MegaHertz (MHz) band of the spectrum, in Very High Frequency (VHF) or Ultra High Frequency (UHF). Any antenna can pick up analog and digital signals as long as it is optimally configured to pull in those frequencies. That is known as the antenna’s “gain.”

 

It is the tuner in the television set that needs the capability of properly displaying the digital signal. That is why older analog television sets needed a digital converter box when the the digital television transition occurred in 2009. No one needed to go out and buy a different antenna then, but that didn’t stop unscrupulous or ignorant salespeople from selling plenty of “HDTV” antennas to confused consumers.

 

Because many of the new antennas being marketed as “HDTV” have a mod, futuristic profile, looking much different than the old rabbit ears indoor antennas and the old coat hanger outdoor antennas, consumers can come to believe they are not like those antennas, and marketers are happy to let them believe that. In truth, much of the new antenna designs are due to making them omnidirectional or UHF-only, both of which are not necessarily improvements over the old designs.

 

Log periodic VHF TV antenna 1963
VHF TV antenna, 1963; photo by Edward Finkel.
VHF-only antennas were used when few UHF stations were on air.

 

Omnidirectional antennas pick up signals over 360 degrees, but that also means they pick up a lot of interference and are weaker at picking up a strong signal from one direction. The old design, a large coat hanger antenna on the rooftop is still best at picking up a distant signal from one direction and tuning out interference from other directions. The UHF-only design allows an antenna to have a low profile because of the characteristics of the UHF signal, but at the obvious cost of not being able to pick up VHF signals. Manufacturers did this in the belief that after the digital transition there would be far fewer TV stations broadcasting over VHF because the digital signal is more efficient over UHF, and because they felt consumers would prefer the smaller profile.

 

Consumers prefer small profile antennas for some settings in particular, such as apartments and in neighborhoods with a homeowners association, where landlords and homeowners association boards would like to have them believe they are not allowed to put up a high gain antenna outdoors. Section 207 of The Telecommunications Act of 1996 says landlords and association boards cannot get away with blanket prohibitions. This is especially worth noting because clear reception of a digital signal requires a higher gain antenna than is necessary for receiving an analog signal. A preamplifier on the antenna can help, but because a preamplifier increases signal noise as well, it is best used for boosting the signal as it travels down a long cable run to the television set, rather than as a stopgap to make up for low gain from the antenna. A strong over-the-air signal is worth the trouble it can require, however, since the resulting television picture is much sharper than an equivalent cable or satellite derived picture. In order to carry hundreds of channels, cable and satellite companies need to compress their signal data, losing definition. Broadcast signals are not compressed.

 

Antena de TV - TV antenna (3149926874)
Modern UHF-only TV antenna; photo by Flickr user shaorang,
from Puerto de Santa Maria, Cadiz, España.
UHF elements in front are backed by corner reflector elements.

 

Whatever you do when you cut the cable or satellite TV cord, think twice before falling for the “HDTV” antenna ads currently airing. Like all con games, they rely heavily on the greed of the mark in believing he or she can get something for nothing. To that end, the TV huckster does not say directly that the mark can get all the same channels cable and satellite services provide, but through clever wording he allows the unsophisticated mark to infer that and jump to conclusions. The wreckage can be found in online forums. Tempting as it can be to jeer at these consumers for getting what they deserved, they are more deserving sympathy in the recognition that it has taken only one generation to pass for them to forget or never realize there once was a way to watch television without paying for it. These people often are purchasing the product because they are too poor to continue paying high cable and satellite bills. The marks more deserving contempt are some of the better educated high rollers who, ignoring reality, willed themselves to believe Bernie Madoff really was getting them something for nothing. They might have been better off cutting out the middle man and investing directly in the booming market for “HDTV” antennas.
― Techly