Comments rivergal has made

  • When I was growing up in Australia, our wall outlets did not have these switches.  However, I have a feeling that the reason they are now being used has something to do with the fact household current in Australia and NZ is about double the voltage of that found in most of N. America and Europe.  This makes it extremely lethal if you poke a paper clip into an active wall socket in NZ or Oz.  But presumably it's possible to add switches to US outlet boxes.  Just be aware that anything mechanical can and will fail on occasion!

    On Ask Umbra on smarter outlets posted 3 months, 3 weeks ago 9 Responses
  • Cleaning a cup in a shared bathroom?

    How do you go about cleaning a cup when using a bathroom with multiple sinkless stalls and an open sink area?  I can see using one at home or at work if you have a "one holer" bathroom there, but that's not the case in most office buildings, public buildings, at airports, etc.  The shared public bathroom also makes reusable pad management problematic.  Please advise!

    P.S. the mirror adjustment comment in the Lunapad review had me laughing hysterically . . .On A review of eco-minded feminine products posted 1 year ago 46 Responses

  • Another plastic solution!

    We bought a house previously occupied by a couple with a huge carbon footprint and are still adapting it to our more thrifty ways.  Among other things it has a "fireplace" consisting of some ceramic logs surrounded by natural gas piping in what was once an open hearth, with a large pilot light.  The damper is designed to be left partially open to vent the pilot's combustion products, which could include deadly CO, so until we re-engineer the fireplace (are looking into wood or pellet-burning inserts but Anchorage AK has lousy wood compared to Vermont where I hail from), we are using a black plastic garbage bag to reduce air leaks.  The colder it gets, the more strongly does this cheap rectangle of heavy mil plastic suction itself over the decorative glass fireplace door.

    We could replace the pilot with an electronic ignition system and shut the flue completely (maybe by using a plastic ball!), but since we can't bring ourselves to enjoy watching the heat from hundreds of cubic feet of gas go straight up the chimney, this seems counterproductive.  Instead we'd like to use the fireplace for a back-up heating system so that when the power goes out for a week after our next 9.2 earthquake, we'll still be able to heat parts of the house.  Temps average below freezing from late September through late April here, i.e. over 1/2 the year, so backup power, heat and water is important!On Umbra on unused fireplaces posted 1 year ago 2 Responses

  • Cold climate driveways

    Here in Anchorage AK we have a gravel driveway, which is much safer to walk on than asphalt during the winter because the gravel provides some traction.  Alaskans do not usually expect bare pavement on driving surfaces and most of our roads and drives remain white from late October through mid-April.  It's relatively easy to shovel new snow off the hard-packed snow/ice surface no matter whether there's concrete, asphalt, or gravel underneath.  We don't have sources of cheap salt and the sun is not high or strong enough to melt snow off roads until mid-spring, so we use "sand" (really small gravel that does a number on our windshields) and studded tires (or Blizzaks) for traction.

    Plastic grid usually has to be anchored and/or ballasted to hold it in place, using gravel in the cells.  It has the advantage of keeping the gravel in one place, too, but I don't think it's suitable for driveways with much slope.  Anywhere there's frost heaving masonery and concrete can cause problems -- that's why flexible asphalt is so popular up north.

    Porous pavement is perfect for most parking areas but may need to be vacuumed -- using a special machine -- to keep fine particles from clogging the pores over time, especially if you use sand on your drive or if your car picks up a lot of sand and grime from street applications.

    Whatever you do, just don't get a heated drive!  You'd be suprised how popular they are here (well, given what you all are finding out about our Guv, maybe not . . .) and I cringe every time I see steam rising from one of them.On Umbra on driveways posted 1 year, 1 month ago 9 Responses

  • Women and Hg

    Too bad the report apparently omitted the two states with by far the highest per capita consumption of seafood.  

    Can you guess which states these are?  (Hint: one has a longer coastline than the other 49 states combined and both celebrate their 50th anniversary of statehood next year.  Also, neither of them fit conveniently on a map of the Lower 48 and one of them has a governor who's McCain's running mate.)

    Sure hope you've figured it out by now . . . as a woman who lives in one of these states, eats a lot of fish, and who lived in New England and the Maritime Provinces for a total of 25 years, I'd kinda like to see more about my state's risk!On Snippets from the news posted 1 year, 2 months ago 1 Response

  • Lose the cork and heavy glass and go box wine!

    We live in AK which produces very little of its own wine, so all the wine we drink has to be shipped up from the Lower 48 (Seattle is 1500 miles away).  The energy used to transport glass bottles is substantial, and there's not always a local market for recycled glass here.  So, we've increasingly found ourselves buying decent box wine.  Some plastic is used to make the inner bladder and spigot but probably about the same amount as would be used in four bottles, the equivalent of the 3 liter bladder's capacity.  The box itself is recyclable cardboard.  You can get drinkable table wine if you go up a level from the older box brands, e.g. a 3 l box for the equivalent of $6/bottle ($24).  There's better variety and quality in reds than whites but as box wine's popularity increases that will change.  The best part is ease of storage -- the box fits better in the fridge than bottles do (especially 1.5 l bottles) and there is little air exposure after the bladder is tapped, so you can enjoy the wine over several days or weeks with no change in quality.  If you're going to drink vin ordinaire, do the environmentally conscious thing and help increase the market for boxed wine!  Thanks!!On Umbra on wine bottle stoppers posted 1 year, 2 months ago 8 Responses

  • Aluminum . . .

    is the most common metallic element on earth.  Compounds of aluminum are found in most soils, so your body is exposed to Al pretty much any time you get your hands dirty or get dust on your skin or in your nose.  Please don't spread the unsubstantiated myth that Al causes breast cancer.  There is no scientific (as opposed to urban legend) based evidence that it does.

    Those deodorant crystals you all like contain Al in the form of alum or bauxite. Alum is used by many municipal water treatment plants to purify drinking water.  It's not dangerous!

    The reason all those "eco" deodorants don't work is that they don't stop perspiration, which eventually overwhelms their scent-masking abilities.  If you want to favor what's "natural" over what isn't, the function of axial sweat glands is VERY natural -- it is a secondary sexual characteristic that "Nature" intended to help us attract appropriate mates.

    My advice: use an "invisible" commercial antiperspirant and deodorant and focus your healthy lifestyle behavior on your diet, weight, stopping smoking, getting enough exercise and sleep, driving non-agressively, and wearing your seatbelt.On Making a stink about green(ish) deodorants posted 1 year, 3 months ago 36 Responses

  • Aluminum . . .

    is the most common metallic element on earth.  Compounds of aluminum are found in most soils, so your body is exposed to Al pretty much any time you get your hands dirty or get dust on your skin or in your nose.  Please don't spread the unsubstantiated myth that Al causes breast cancer.  There is no scientific (as opposed to urban legend) based evidence that it does.

    Those deodorant crystals you all like contain Al in the form of alum or bauxite. Alum is used by many municipal water treatment plants to purify drinking water.  It's not dangerous!

    The reason all those "eco" deodorants don't work is that they don't stop perspiration, which eventually overwhelms their scent-masking abilities.  If you want to favor what's "natural" over what isn't, the function of axial sweat glands is VERY natural -- it is a secondary sexual characteristic that "Nature" intended to help us attract appropriate mates.

    My advice: use an "invisible" commercial antiperspirant and deodorant and focus your healthy lifestyle behavior on your diet, weight, stopping smoking, getting enough exercise and sleep, driving non-agressively, and wearing your seatbelt.On Making a stink about green(ish) deodorants posted 1 year, 3 months ago 36 Responses

  • Pets, children and basement cooling

    I've got a pet.  But then I live in AK where we've only had one day over 70 F so far this year.  I don't have any children, by choice.  A single child would use far more energy than my dog does.  And I only weigh 110 lbs so I myself use far less energy than the average overweight to obese 50 y.o. American woman.  I think I can get over any guilt I might otherwise feel about my dog.

    As for bringing cooler air up from the basement: I used to do this all the time when I lived in un-airconditioned older houses in eastern MA.  Most basements in such houses have at least one window that opens, or a walkout door.  If you open that window or door in the evening, open the door to the basement, and put a strong window fan in an upstairs window, directing the air OUT of the room (i.e. on the exhaust setting), you will feel cool air flooding your house from the ground floor up.  Even in dwellings without basements a window fan set in the upper part of a double hung window can help bring cool evening air in while exhausting hot interior air.  While cold air is denser than warm and will not rise without help, a fan can easily overcome this density differential.

    No, this won't work in dense urban areas where nighttime temps never drop below 80.

    Just don't do what a former roommate of mine insisted on doing: opening her bedroom windows wide all day to the hot outside air while leaving a powerful room fan on while she was out at work.  No surprise that her room was at least 10 degrees hotter than the rest of the house by 5 PM . . .

    All other thing being equal, a large, high ceilinged room, or a shady porch, will feel cooler than a small low room at the same temperature because our bodies actually absorb long wave radiation coming off solid objects like walls and ceilings.  It's time we started designing buildings with some thought about climate and comfort.  Time to bring back the screened porch for summer sleeping and after dinner living!On Umbra on fans versus AC posted 1 year, 4 months ago 19 Responses

  • Sunset is not until 8:40 PM in my town on 3/29/08

    so keeping the lights off won't be much of a sacrifice!On Cities worldwide will turn off lights for Earth Hour posted 1 year, 9 months ago 4 Responses

  • Camelbaks etc.

    I'm a professional environmentalist who also spends lots of time in the backcountry.  I have two science degrees and my course and thesis work included graduate level biochemistry and statistics.  Personally, I will continue to drink from my Lexan bottles in winter (they fit nicely within my OR bottle cozy which keeps them from freezing here in AK), store my earthquake water in 1-gallon milk jugs, and use my Camelbak hydration bladder on summer hikes hikes and backpacks.

    Over the course of my lifetime, the amount of water I'll drink from Lexan or my Camelbak will be negligible compared to the fluids I get from other containers, so even if there's a little BPA leaking out of the Lexan, or microbes in my Camelbak, this will come nowhere near to the health risks I incur every day when I drive, walk through a building with new vinyl flooring, or inhale woodsmoke from a neighbor's woodstove, etc.  BTW since I have a healthy immune system and am diligent about cleaning out my Camelbak after every use, I'm not worried about getting sick from it.  Folks, there are bacteria and viruses everywhere but with a little common sense our bodies are amazingly able to keep the bad stuff out and the good stuff in.

    I will only use my earthquake water -- changed every six months and sanitized with chlorine bleach -- if there's another major earthquake here in Anchorage that puts my house well offline.  Again, drinking a few gallons will present a negligible risk to my health at a time when there will be bigger challenges to healthy living.

    BTW Camelbak sells a (very overpriced) plastic device that fits through the opening and expands to help the inside walls of the bladder air dry.  I hang my Camelbak from my kitchen pot rack using this device when not in use, and take the hose off to dry separately.  There is no off taste associated with my Camelbak nor any visible mold growth etc.  It's as clean as the ceramic and glass containers I drink from and eat off of.  I bought my Camelbak dryer at REI.

    In summary, although I'll do things like use an inverted bowl on a plate to microwave food instead of using plastic, I do not see a big enough risk to justify giving up all plastic use, especially where there is no practical alternative (metal bottles are NOT practical for backpacking).  OTOH I don't smoke, eat lots of wild salmon and vegetables, always use my seatbelt, get tons of high intensity exercise, get 8 hrs of sleep almost every night, and my BMI (I'm a 52-y.o. female) is under 20.  By making these lifestyle choices I have vastly reduced my risk of heart disease and driving fatality, which kill more women my age than all forms of cancer.  I think if most people understood the true comparative risks of occasionally drinking from plastic v. being overweight, inactive, living in a smoggy city, not getting a colonoscopy at age 50, etc., they would lose this silly obsession with Lexan.On Umbra on Camelbaks posted 1 year, 10 months ago 16 Responses

  • CO2 Emissions are Dependent on Weight!

    News flash: planes use more fuel when they carry more weight.  Why is no one talking about this?  Nor is anyone talking about the fact that as Americans get fatter and fatter, we use more gasoline when we drive even if nothing else changes.  Fat people also consume more food, which uses more energy to produce and transport.

    I weigh only 110 lbs and travel very light -- lightweight wheeled 22" suitcase with not much in it.  I often site next to HUGE guys whose jeans and shoes alone weigh as much as all the things in my suitcase.  I also keep my car virtually empty of stuff except for emergency equipment.  My contribution to CO2 emissions is a lot lower than those of people who let their BMI get up over 20, not to mention 25, 30, etc.

    Losing weight is something most Americans could do to help save the planet.On How much global warming results from air travel? posted 1 year, 11 months ago 8 Responses

  • Respect for the interdependent web . . .

    As both a UU and a biologist, I agree with Umbra that Didi did the right thing.  It should be obvious that there's a huge difference between relocating/dumping surplus pet carnivores like dogs and cats in natural areas, and relocating the odd native mouse or two.  Dumped pets will have a tough go of it, and if they survive it may be at the expense of local prey, reducing the food supply for native predators. The mouse is already part of the local ecosystem and will likely either survive for a year or two or become food for an owl or weasel. This is better for the "interdependent web of all existence" than is flushing a mouse carcass down the toilet or burying it in a landfill.

    BTW, rhkennerly, the town of Harvard MA is pretty rural (it's not the same place as Cambridge, where Harvard University is located).  And, Umbra, most UUs don't believe in heaven.  Furthermore, while we love talking to our ministers, we don't expect them to tell us what to believe, theologically speaking -- instead we rely on our own "free and responsible search for truth and meaning."  I.e., we're empowered to make rational, science-based decisions.On Umbra on live trapping posted 2 years, 1 month ago 28 Responses

  • Tidal Power

    Tidal power, AKA hydrokinetic power, is indeed looking more and more attractive.  Right now there are multiple sites along the US coast where rotary or helical turbines are being proposed for testing, under permits from the Federal Energy Regulatory Agency (FERC).  While the technology is still in its infancy and impacts on marine resources are largely unknown, hydrokinetic turbines are likely to be much more friendly than are barrages.

    Some potential advantages of hydrokinetics:

    1. Predictability.  Unlike winds, tides occur with great regularity.  Both the magnitude and timing of tidal cycles are known far in advance, making it possible for a utility to know how much power will be generated and what other sources should be used to meet demand.  While Umbra rightly points out that periods of slack water between tides will result in no power, we Grist readers know by now that our future energy policy will have to rely on many eggs in many baskets.  Tidal energy could certainly be one of those eggs.  If it ever becomes economically feasible to store power, e.g. by using electrolysis in hydrogen cells, tidal energy could power communities around the clock.  Also, because tides peak at various locations along a given coastline at various times, by placing turbines in different locations it may be possible to level power production regionally.
    2. Location.  Much of our population is concentrated along our coasts.  Where tidal energy potential is also high, placing turbines just offshore could result in vastly shorter transmission lines than we see elsewhere.  Again, by placing smaller eggs in nearby baskets, we are eliminating the total waste of electricity (as waste heat) that currently results from long-distance power transmission.
    3. Scalability.  In order to generate power from rivers, we typically build dams, which are similar to tidal barrages in their environmental impacts.  Dams and barrages block fish migration and substantially alter flow regimes, sedimentation patterns, and water quality.  In contrast, a hydrokinetic turbine will only affect its immediate environs unless many are installed across a narrow waterway.  In case of unforeseen envvironmental problems the turbines are easily uninstalled and relocatable.

    For more information on hydrokinetics, including maps of North American tidal energy potential, a description of turbines generating power in the East River off Rooseveldt Is. in NY, and another in British Columbia, see this website:

    http://www.epri.com/oceanenergy/

    For papers presented at the January 2007 Ocean Energy conference here in Alaska, see:

    ftp://ftp.aidea.org/Alternative%20Energy%20and%20Energy ...

    On Umbra on tidal power posted 2 years, 4 months ago 2 Responses
  • Ruminating on rumination

    I think all ruminants produce methane as a byproduct of their digestion, which relies on fermentation to break down hydrocarbons.  So, while there may be good reasons to avoid grain-fed beef, I'm not sure GG impact is one of them.  Gmunger is right that we should differentiate between cycling carbon and fossil carbon, although I think the case could be made that carbon cycling between CO2 and plants has a lower impact than carbon cycling between plants and methane does.  Methane is a really major GG.

    I don't eat a lot of meat but I do like wool (produced by ruminating sheep) and other natural animal-based fibers.  I also like the idea of restoring bison to the Great Plains, having moose in my yard, and protecting herds of ungulates elsewhere.  If we can't have beef because of methane, does that mean we should also discourage large populations fo these other animals?On Too, Too Sullied Flesh posted 2 years, 4 months ago 3 Responses

  • Radiant Heat is Great in the Greatland!

    I am currently house shopping here in Alaska, and radiant heat is on my wish list of new house features.  I just read the "Building Green" article Umbra referred to, and have the following observations:

    1. The authors work in Loveland Colorado, which at 40 N latitude is a lot closer to the equator than where I live (61 N).  As they say, their review of radiant heat is relevant to houses in "moderate-to-cold" climates.  In places like AK where there is virtually no solar gain during the coldest winter months (our sun is only a few degrees above the horizon for 3-5 hours/day), passive solar is not an option for replacing or supplementing active heating systems.

    2. They say that much heat is lost to the ground with slab-on-grade radiant-floor heating systems. I'm sure that's true.  But you generally don't see slab-on-grade in areas where frost penetrates deep into the ground, because such foundations would soon crack with frost heaving.  I've never seen a slab-on-grade house here in AK or in New England.  We have to have full, deep, well-insulated basements or crawl spaces to keep our houses on the level.

    3. They note that most radiant-floor heating systems cannot provide cooling.  Not an issue here where the average maximum temperature during our warmest week of the year is 66 F.  We have air conditioning -- it's called an open door or window!

    I currently live in a house with hot water baseboard heat, which isn't as bad as forced air, but nowhere near as nice as the radiant heat systems some of my friends have.  Something the "Green Building" authors do not talk about is thermal mass: any liquid-based heating system has more mass than does hot air.  Yes, this means there can be a lag between turning up the thermostat and starting to feel warm.  But it also means the house maintains a comfortable temperature more easily, with fewer drafts and cold spots.  You can set the thermostat and leave it (or better still, use a programmable one) instead of having to toggle it up and down as the blower kicks on and off on a really cold day.

    Having experienced all three kinds of conventional heating systems, plus passive solar, wood, and wood pellet, in AK, northern New England, and the Maritime provinces, I still choose radiant floor heat (maybe with wood backup/area heat) in a location where solar can't do the job.On Umbra on radiant heating posted 2 years, 4 months ago 11 Responses

  • Fish and Bush Meat Are not the Same

    As an aquatic scientist living in Alaska, I vehemently disagree with CyberBrook's sweeping generalizations about whether it's OK to eat fish.  I am not a vegetarian.  But neither do I think eating "bush meat" is a good thing, though I note most critics of this practice are not indigenous people looking for protein for their families in some of the world's most impoverished countries.

    When you kill a chimpanzee or forest ungulate in the prime of its life, you destroy that individual's ability to propagate. However, when I eat a wild Alaska Sockeye, caught on its spawning run, I destroy only a single individual's reproductive potential out of a local spawning population of thousands of fish.  Since productivity in most rivers is limited by spawning habitat rather than spawning returns, as long as there are enough other adult Sockeye making it up the river, my harvest has no effect on productivity.  Alaska has a well-managed fishery and few if any obstacles to migration, unlike the N. Atlantic, site of first the Atlantic salmon crash (due in part to dams) and then the Cod and Haddock crash (due to overfishing) that occured while I was at a Nova Scotian grad school.

    Maybe CyberBrook and other readers don't know this, but Pacific salmon die soon after spawning.  So the salmon I catch would be dead within a week or too anyway, very likely without spawning successfully.  Meanwhile, many of the alternative foods CyberBrook suggests I eat to get my Omega 3s etc. are grown thousands of miles from AK, and consume massive amount of fossil fuels in their cultivation and transport.  In contrast the nearest salmon-bearing stream is 1/4 mile from where I sit in a downtown Anchorage office building.  I can walk there on my lunch hour.

    I will stick to Alaska salmon and halibut -- poor CyberBrook doesn't know what s/he is missing!On All you need for summer seafood splendor posted 2 years, 4 months ago 22 Responses

  • Wait a minute!

    Big, big difference between these two resignations in my humble opinion.  

    1. Browne resigned over a personal matter that may have involved misuse of private corporate resources.  It's none of my business who he spends personal time with and even if he used BP money (right now all we know is that it's alleged) that's something that can be remedied in court.

    2. MacDonald was a public servant, sworn to uphold the Constitution in the deliverance of her official duties, who was found (not just charged) by her Department's own Inspector General to have violated federal law by giving privileged information to the Pacific Legal Foundation, a so-called "wise use" anti-environment litigator.  This, along with her ESA report alterations (she's not a scientist) ARE my business!  I paid her salary.  Her malfeasance affected two Department of Interior bureaus (FWS and NPS) that she oversaw -- bureaus that are critical to environmental protection.  She betrayed the public trust, as did Stephen Griles, who emerged from the same Bush-Cheney muck to mess up DOI.  I hope my government throws the book at her and her slimy associates.  She deserves prison for leaking official documents for political gain.

    Next time, Grist writers, please put the emphasis where it belongs!  I don't think most of your readers respond to the homophobic insinuation about Browne that the rest of the press is titillating us with, either.On His Soul Goes Marching On posted 2 years, 7 months ago 1 Response
  • Double Dipping

    Let's see, these farmers are asking us taxpayers to continue to pay them annual rent for keeping part of their farms in conservation cover crops, but they want to use the same land to grow corn (not a conservation cover crop) that they can then sell for more cash?  I don't think so.

    The CRP program is voluntary.  It's supposed to be used to pay farmers to establish "long term covers" (think healthy plant communities that stabilize the soil and do not require annual cultivation, weeding, fertilizers, etc.) to benefit soil conservation, wildlife, water quality, etc.

    Corn is planted annually, either by plowing and harrowing the land or by using "no till" techniques that require massive amounts of herbicides to keep weeds at bay.  It is one of our most chemical-intensive crops.  There is no way I'm going to let the government use my conservation tax dollars to subsidise farmers for profitable cultivation of their land that has negative conservation impacts.

    The noive of some people . . .On 'Cause what else can we feed our cattle? posted 2 years, 9 months ago 18 Responses

  • Sun Tea In Microwaved Temperatures

    1. Most UV passing through glass is converted to IR radiation, so don't count on Mr. Sun to disinfect any liquid stored in glass.  UV disinfectant pens are a new water purification technology but must be placed inside the container to work.

    2. At a given atmospheric pressure, water heated to boiling in mug inside a microwave is the same temperature as boiling water heated in a kettle.  However, don't count on easily getting water that hot in your microwave unless you are prepared to see much of it splatter out of the mug.  All the people who think they are observing a scientific phenomenon, i.e. that microwaved substances cool more quickly than those heated by convection or conduction, are making a false comparision. What I think they are actually seeing is that foods heated to lower temperatures in microwaves aren't as warm as foods heated to higher temperatures elsewhere. Add to this the fact that microwaves do not heat ceramics or glass (unless they contain lead) while plates etc. placed under restaurant IR lamps do absorb heat, and you will see why food warmed on plates in a microwave arrives at a table colder than food warmed under IR lamps or placed from a saucepan directly on to a warm plate.

    Many of us who make tea in a mug or teapot will put some hot water in the container for a while to warm it up, pour it out, and then pour in the tea-making water.  I don't think anyone makes microwaved tea this way.On Umbra on boiling water for tea posted 2 years, 9 months ago 23 Responses
  • Home hot water taps

    Rebekka,

    One of the first things I did when I moved into my current house is to unplug the 190 degree F hot water tap that was installed on my kitchen sink.  Such devices are basically mini hot water heaters, sans any insulation, that keep a cup or two of water at a constant sub-boiling temperature.  They consume enormous amounts of electricity.   Even if you are home all day and consume frequent hot beverages, this is like keeping your electric kettle on simmer 24/7. IMHO, the convenience of having such instant hot water is not worth the impact on the planet.

    Anyone who thinks they might consume more than one cup of hot beverage in a sitting might want to try making a bigger batch and using a thermos to keep the stuff warm. That or an old-fashioned tea cozy over the teapot.  BTW I once won a "Queen Mum" lookalike contest wearing such a tea cozy as a hat!On Umbra on boiling water for tea posted 2 years, 9 months ago 23 Responses

  • A Winter's Trail

    I'm weighing in from Alaska, where cold temperatures definitely harm our otherwise pristine air quality in urban areas. While all the points Umbra makes in her answer are true, I think she missed an important one concerning internal combustion engine efficiency at low temperatures. A much greater proportion of the air/gasoline mix that enters each cylinder in your car's engine gets expelled, unburnt, during the exhaust stroke when temperatures drop below 20 F or so because the gas component is not fully vaporized and thus doesn't burn when the spark plug briefly ignites.  This gets progressively worse the colder it gets, because at very low temperatures the engine will never warm up enough inside to completely vaporize cold (liquid) gasoline. We can actually see the unburnt oils condensing on the pavement under a car's tailpipe -- it's extremely gross looking and makes the roads very slippery.

    I don't believe that NOx are much of a problem here in the winter -- engine temperatures and/or compression ratios have to be high to form NOx.

    Here in Anchorage there are daily advisories to plug in engine block heaters when night time lows are 20 F or below, and the block heaters are subsidized.  In Fairbanks, where it is frequently -40 F or colder even during the day (days only last 3.5 hours there in late December), leaving your engine on while you run an errand is NOT just to keep the car warm for the driver and passengers.  It is sometimes the only way you can get around at all -- engines simply won't restart when they get too cold, plus all the car's plastic components (door handles, heat and vent levers, etc.) get brittle and break if you don't leave them set where they need to be when you turn the car on.  Then there's the square tire issue -- if you don't keep them round by driving around the parking lot while someone else runs into the store, your tires will get a flat spot on the bottom and driving will be pretty bumpy for the first few miles.  Virtually all outdoor parking spaces in Fairbanks have power outlets for block heaters, but keep in mind that the electricity used comes from nearby fossil fuel plants . . .

    Winter time inversions in Anchorage and Fairbanks do not tend to disappear during the day because there isn't enough solar heating, so we breathe a nasty mixture of ice fog with uncombusted gasoline, woodsmoke and natural gas (from home heating) for too much of the winter.  Outdoor air in Fairbanks can taste and smell like the inside of an underground parking garage.  Some intrepid souls take public transportation -- but this is a real sacrifice, involving walking in the dark and waiting at unheated bus stops in temperatures that freeze exposed flesh in seconds.On Umbra on air quality and temperature posted 2 years, 9 months ago 11 Responses

  • Stop funding schools using property taxes

    and inner suburbs and cities will start becoming more attractive for families with school-age children.  We can create all the open space and neighborhood amenities we want, to attract the middle-class back to our cities, but until we stop linking the quality of public education to the value of local real estate, many parents will choose the expensive, tiring, and environmentally bad commute in order to live near decent schools.On Suburban commutes are money-losers posted 3 years, 1 month ago 3 Responses

  • A couple of states are missing

    from the weather map.  (That's right, the Weather Channel always ignores Alaska and Hawai'i.  I've never understood why Dish Network bothers including that channel on my satellite TV lineup.)

    Here at sea level in Southcentral AK, we're having a cool, wet summer in contrast to recent years.  It has only topped 70 a few times this year and 80 not at all (our daily records are in the low 80s).  Yesterday's high was in the low 60s, 40s at night.  Slept in my warmest down bag at 3000' on a nearby mountain Friday night, adjacent to a lake that still had 50% of its surface covered by ice.  So I don't know what you all are complaining about!On Hot posted 3 years, 4 months ago 14 Responses

  • Still Waiting For John Stossel's Concession Speech

    Stossel gave Michael Crichton's book "State of Fear" much more attention than it deserved, bloated, sensational, poorly researched tome that it was.  I generally avoid Stossel as much as I avoid Easterbrook (couldn't Brookings find a better scientist?), so maybe I've missed something, but I don't think Dave has jumped on the "me too!" bandwagon yet.On Easterbrook accepts global warming posted 3 years, 6 months ago 8 Responses

  • Public Transportation in a Cold, Dark Place

    Granted winters in Reykjavik are substantially warmer and somewhat less snowy than they are here where I live in Southcentral Alaska.  But they are still very, very dark, and also very stormy, so I wonder: could Reykjavik's citizens' reluctance to rely on public transportation possibly have anything to do with the fact it means waiting and walking in the dark at both ends of a typical workday commute?

    Maybe with increasing sprawl, the city's taffic will eventually get bad enough to prompt some commuters to take the bus.  But as one who knows what it's like to try to navigate icy sidewalks in the pitch dark at 9 AM and 5 PM with wind-driven snow, sleet and rain plastering my face, I wouldn't blame them if they stuck to their cars.

    Sure, it matters what and how much we drive.  But Icelanders, like most of my Alaskan neighbors, drive far fewer miles each year than the average US resident.  What matters more in terms of global warming is how big our houses are, how well insulated, how they are heated or cooled, and whether we use two-stroke lawnmowers, weed whackers, snowblowers etc. to maintain our huge yards.  On these measures, Iceland has most places beat.  So as another northern city dweller, I'm willing to forgive them their predilection for cars over buses. On A visit to Iceland spurs dreams of a hydrogen future posted 4 years, 4 months ago 1 Response

  • Congress can allow drilling virtually anywhere!

    While I'm vehemently opposed to drilling in ANWR (I live in AK and work for a national land-managing agency), I'm not sure Robert Fischman's premise is valid.  He seems to be arguing that opening up the "1002" area of ANWR creates a new, negative precedent for all national wildlife refuges.  This isn't really the case.

    ANWR was created by an Act of Congress.  Congress also does things like create national parks and designated wilderness.  Anything Congress does, it can undo.  It can authorize oil and gas drilling on federal lands virtually anywhere in the country if it wants to.  This would include other national wildlife refuges and even national parks.  No, it wouldn't be politically easy for Congress to allow drilling in parks, but it could be done, legally, by de-authorizing the park or by making drilling an excepted use within the park.

    Congress has not yet authorized drilling in ANWR.  But the prospect of this has been around since before 1980, when the law that created ANWR and many other federal protected areas in Alaska was passed. That law was ANILCA, and it instructed the Department of the Interior to study the oil and gas potential of the so-called Section 1002 area of ANWR.  ANILCA also said that new Congressional action would be needed before oil and gas development would actually be allowed.  That is what is being debated now.

    So, does the current debate create a legal precedent for drilling elsewhere?  I'd say not, especially for federally-protected areas that do not have ANILCA-like language in the statutes that created them.  The vote on ANWR would only undermine protection for other refuges or parks if Congress explicitly added these areas to the drilling approval bill.  Meanwhile, courts could not rely on Congress's ANWR decision to allow drilling elsewhere.

    National parks, wilderness, and wildlife refuges are Congressional constructs.  It's not a precedent in the legal sense of the term when Congress changes its own laws.  In this case, it's still a bad idea, however.On Arctic Refuge drilling debate misses the big picture posted 4 years, 7 months ago 7 Responses

  • Time zone

    We weren't in the same time zone, da silva -- I'm at least 1500 miles NW of you.  But we root for the same teams.On Paper beating scissors posted 5 years, 1 month ago 15 Responses

  • Trifecta?

    I live and therefore vote on the other side of the divide (continental) but I have a feeling that's not what you're referring to, Da Silva.  (Aside -- do you think many Grist readers actually vote for the other team???)  Nonetheless, I feel the same way about the BoSox's wicked good routing of the evil Yankees last night.  (Another aside: I also feel good about living in a time zone where the game ended at 8, not midnight.)

    I'm hoping for a trifecta: A Red Sox World Series win for the first time since 1918, my candidate (also from Massachusetts) for Prez, and my local former Guv (from Oklahoma of all places, but he went to Yale with Bush) for Senator.

    RG

    (Ripken: the Dent "nutmeg" was in '86, not '78.)On Paper beating scissors posted 5 years, 1 month ago 15 Responses