Archive for the 'Environment' Category

Any suggestions for cool lawnmowers?

Posted in Environment, Family, Gardening, My writing on August 10th, 2008

goat see
Creative Commons License photo credit: maessive

First, let’s set the stage:

  • I really don’t like the traditional suburban lawn. Tons of chemical, energy, and effort to create and maintain a biologically unstable mono culture so that I can … putt … or something. So, so silly.
  • I’m also a big non-fan of petrol powered lawnmowers. They’re noisy, smelly, polluting beasts that beat the crap out of the grass, ripping it instead of actually cutting it.

As a consequence we’ve explored a bunch of alternatives, but none have really worked terribly well. We really liked the idea of reel mowers, but our experience with several of them makes it clear that our lawn is way too uneven and bumpy for a reel mower. Sigh.

What would be perfect would be a solar powered Roomba-like robot mower. WeatherGirl correctly pointed out that this is frequently known as a “goat”; sadly, the city classifies goats as livestock rather than lawn tools, and we aren’t allowed keep livestock in town. Damn.

So, anyone have any ideas for an interesting alternative to buying a stinky petrol powered monster?

Thanks in advance!

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Contemplating a major change in direction

Posted in Education, Environment, Music, Science on March 12th, 2008

Hot licks I have taught sections of UMM’s First Year Seminar (FYS) course pretty much solid since it was created back in 1999. My topic has been American Roots Music, a subject I love dearly and have greatly enjoyed exploring with my students. I’ve met a host of really wonderful folks through that course, including some of my best student connections outside of Computer Science. That topic has drawn in a broad range of students, many of whom have gone on to play major roles at the radio station and in the open mic night series, and it’s been a great excuse to buy, listen to, and talk about some really wonderful music.

Thus it is with very mixed feelings that I am considering changing my FYS topic for next year when I return from sabbatical. I’ve taught this for a long time and feel like I’m running out of steam on it. I also continue to struggle with lifting the subject from being about “entertainment” to being about human life and culture; I’ve found it difficult to convey my belief in the vitality of the subject. Another issue I’ve struggled with has been critical thinking. FYS replaced a course called Inquiry that had critical thinking as one of its core elements; I always thought that was very valuable, but never really felt like I included that in a consistent way in my roots music course.

Yeah, whatchoo looking at So I’m considering changing topics.

In particular I’m thinking of something like “Climate change: Global crisis, or a tempest in a teapot?”. I think this is one of the (if not the) major questions of our age, and that it can be damnedly difficult to make sense of all the contradictory things said on the subject. My vision is for the class to be an exercise in critical thinking, using climate change as the underlying source of questions and material.

In a one semester, two credit course it’s clear that there’s only so much that we’re going to be able to address, so they’re not going to become experts on the subject (just as I would never claim to be one). Hopefully, however, they’d have a better understanding both of this subject, and of how to approach complex subjects like this in the future.

Thoughts?

Thanks in advance.

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Man, that’s gonna stink (and probably while I’m there)

Posted in Environment, Events, Politics, Travels on February 25th, 2008

'Naples trash emergency' by roger taylor 85 - G2 Studio's photos

This is what Naples has become through a combination of mismanagement and a complete lack of any sort of recycling system. (Apparently GreenPeace came in and set up a demonstration recycling system in one neighborhood had showed that over 70% of the trash there could be recycled if people would just get it together.)

And I’m going there in a month for EuroGP.

Here’s hoping that the situation gets resolved and/or the weather doesn’t get too warm…

Thanks to Roger Taylor for the very cool poster shot of the situation on the ground. It was interesting that when I search for “real news articles” on news.google.com I got some useful stories, but very few decent images. A search for Creative Commons licensed images on Flickr, however, turned up a bunch of excellent images (including this one).

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Remember to recycle old electronics!

Posted in Environment, Events on December 25th, 2007

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Video iPod by Alexandre Van de Sande

As folks collapse on the sofa, full of roast beast and replete with the goodies of the season, it’s worth thinking a bit about recycling as much as we can of the waste this whole business generates. If you were lucky enough to score some electronic goodies (cell phones, iPods, etc., etc.) that will orphan some of your old gear, you might consider giving or selling those bits on. We sold a bunch of gear on eBay before we came to the UK, and donated a great 19″ CRT monitor that no one bid on to the local school system. Services like FreeCycle make it a lot easier to find happy homes for things you no longer want but which could still be useful to others.

Barring selling or donation, definitely explore recycling them instead of just pitching them in the trash. Cast off electronic represent the fastest growing component of the municipal waste stream, and the problem’s just gonna get larger. Cell phones don’t biodegrade or compost well, and there are now something like 1 billion cell phones on the planet, which makes for a pretty hefty garbage truck.

Looking for some tips on how to gracefully move some old electronics on to their next life? There’s lots of info on-line, including this nice piece from The Daily Green.

Thanks to Alexandre Van de Sande for the cool photo.

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I guess we could consider olives instead

Posted in Environment, Family, Gardening on December 18th, 2007

Beautiful blue sky ruined by ..., by [OP]

I’ve joked for several years that we were going to take advantage of global warming by starting a banana plantation in Minnesota to support us in our retirement. Apparently a fellow in Devon (here in the UK) is doing it for real, but with olives instead of bananas.

And so now we wait and see…

Thanks to [OP] for the cool photo.

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A serious case of misplaced priorities

Posted in Environment, Politics on December 3rd, 2007

Alert! One of our eagle-eyed readers (Lambo) pointed out in the comments that the details of this chart are almost certainly broken, and that the PCRM may not be quite the upstanding source that we might have hoped for. I think the larger point probably still holds, but this graph needs to be taken with more salt than is dietarily good for you. See the comments for more.

Chart showing how messed up our food subsidies are

We are what we eat, and (all too often) we eat what’s cheap, and what’s cheap is what we subsidize.

Or, turning the thing around…

We subsidize unhealthy, environmentally irresponsible foods, so it’s hardly a surprise that, as a nation, we eat tons of the stuff.

To cleanse your pallet, I’ll leave you with a delicious organic mushroom from River Nene Farms

To become a gorgeous soup

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It would be helpful if our hot water heater produced black balloons

Posted in Environment, Video on December 2nd, 2007

I keep going on about how hard it is for well meaning people to make good decisions without accurate feedback, and this video has a nice way of visualizing the problem. Now if I could just get all our appliances to make balloons like that…

Coin operated gas meters were common in the UK for many years, and in some ways it would be nice to return to something like that. It would make you think a second before automatically hitting that light switch when you enter a room, and it would certainly encourage you to turn the damn thing off when you leave. We still haven’t gotten a bill from all the utilities we’re connected to here in the UK, and we went months with absolutely no feedback on our energy consumption. If there’d been little meters on everything, we would have very quickly learned where the big energy sinks were. As it is, we’ll probably never really know.

It’ll obviously never happen, but I can dream.

Thanks to Tim O’Reilly for the pointer.

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Is this what political will looks like?

Posted in Environment, Photography, Politics on November 21st, 2007

Smoke on the freeway by TonyGman

To quote the photographer:

This is the Perris, Ca, 215 northbound south of perris blvd during the morning commute. This would normally be a bright time of the day, but this morning, traffic was a little stop and go due to the smoke from the local fires here in southern california.

A little understated, perhaps?

As awful as all this was, I have to wonder if this is what it will take to get people to take climate change seriously. Unfortunately even people who realize that we have a major problem on our hands are often overwhelmed by the thing, and tend to add it to the long list of Bad Things That Mostly Affect Someone Else (AIDS in Africa, the Israeli/Palestinian conflict, even Shrub’s fiasco in Iraq) and change the channel.

This is particularly sad because climate change is one of those things that Americans can do something about quite directly. It’s pretty hard for me to make a major difference in a lot of situations (although that’s no excuse for not trying), but climate change is all about my behavior. I can drive less (or not at all). I can replace incandescent bulbs with CFs and turn them off when I leave the room. I can turn down the thermostat. I can support alternative energy programs. I can purchase carbon offsets. I can avoid buying produce that flew half way around the world. I can reduce, reuse, recycle. And if even some of the rest of you do the same, we make a significant difference. We probably won’t solve the problem by ourselves, but we can start the ball rolling, proving that there is support for change at the consumer (and voter) level.

It’s arguably one of the best examples of where “Think Globally, Act Locally” can really make a profound difference.

Unfortunately important things like not driving and skipping the raspberries flown in from remote lands comes at a personal inconvenience. This requires will which, sadly, is typically driven by fear. So maybe we need a few scares like this (along with tragedies like Katrina) to generate the kind of immediacy and fear necessary to get us out of our single-occupant SUVs.

Best hope we turn things around before the tragedy comes to your home, though.

Thanks to TonyGman for the great photo.

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The power of good visualization

Posted in Computing, Education, Environment, Politics, Science on November 16th, 2007

Drop in life expectancy in Botswana visualized with Gapminder

I just discovered The Gapminder, a very cool visualization tool created by Hans Rosling and others. It gives you the ability to visualize changes in a variety of socio-economic indicators across both space and time, with particularly effective use of simple animations across the time dimension.

It’s really cool to play with, and there are a lot of things you can change that aren’t immediately obvious (I found the short demo in the on-line help quite helpful). You can certainly learn a lot by goofing around with it (as well as generate a lot of meaningless visual noise). The screenshot above is from a plot of life expectancy vs. per capita income over time (the default plot you get when you start it up). I had to watch it a few times to sift out some trends, but after getting past the obvious “generally, more money means longer life” I realized that lots of blue bubbles (i.e., African countries) were “falling” out of the cloud at the end like particulates settling out of a liquid. This indicates that their life expectancy has plummeted in the last few years, which is obviously not the right direction. Why? Almost certainly the continuing AIDS crisis in large parts of Africa, and visualizations like this make it painfully (literally) obvious that this must be cause for serious concern.

In the graph above, I’ve highlighted Botswana,which shows a particularly depressing case. Both their life expectancy and per capita incomes were moving in a happy direction until the early 90’s when, despite continued gains in per capita income (which I’d like to know more about), their life expectancy flew the wrong direction.

Take a second to think about the enormous human suffering a change like that implies.

Thanks to John Hawks for the pointer. Hawks points out that the use of circles of different areas probably isn’t a great way to visualize quantitative differences (a general point Tufte raised years ago), but Rosling’s going for quick impact rather than quantitative precision:

So far, we have had a major hit with two target groups: children under 12 and heads of state. What they have in common is that you have only 5 to 10 seconds to impress them.

(You just have to love the reality that you need the same tools to communicate with little kids and world leaders. Maybe we should just put the little kids in charge? They might have more empathy.)

One thing that really annoyed me when I wrote this post was the fact that you can’t easily embed these graphs in a web page. I don’t think I’d really appreciated how used I’d grown to being able to embed images, video, maps, slideshows, and the like in blog posts. I think embedding has become absolutely key to the success and mass propagation on the web, and people designing new tools (or updating existing ones) better keep that in mind.

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Terrible glory

Posted in Environment, Photography, Politics on November 15th, 2007

Licorne posted by Pierre J.

Posted on Flickr by Pierre J.:

These are four scanned pictures of hardcopies I possess of the French nuclear test codenamed Licorne, which was fired on August 24, 1970 . The French army had those pictures taken on site.

Those pictures were readily available at the time at Tahiti and Moruroa military base, and mine have been quite degraded. I scanned them and tried to restore them.

Thanks to Your Daily Awesome for the pointer.

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