A look at what’s ahead in terms of resources and the economy

The TED channel published two interesting videos recently which present two points of view about the Earth, in terms of its resources and economy. The first is from Paul Gilding, entitled “The Earth is full“, and the second is from Peter Diamandis, entitled “Abundance is our future“.

I invite you to watch both points of view, which are at first in seeming opposition but after some consideration, are both saying pretty much the same thing, namely this:

Our current economic models, based on carbon forms of energy, will soon reach their lifespan, and we have some choices to make ahead as we transition to other economic models and other ways of generating our energy and making our stuff.

We can have a smooth transition or we can have a rocky one, with elements of anarchy and possible energy and water wars.

What’s clear on both sides is that we need to something about it and we need to start doing it now.

The wonderful thing is there are solutions to our energy and pollution problems emerging now and if they’re implemented correctly, we will not only avert any potential crises but we will come out ahead of the curve.

What are we waiting for? Let’s do it!


Modern lawn care: a lot of hot air

One of the things I strongly believe in is the need for manual labor, especially during these highly industrialized times. I believe such work yields better results and it keeps us grounded, in touch with the earth from which we ultimately draw our living. I dislike the “modern” methods of lawn care, where one uses hedge trimmers and leaf blowers to do a job which can be done much more adequately by simpler, manual tools such as a broom and a pair of hedge scissors.

Don’t mistake me for a luddite. I use lawnmowers when they’re justified, like when a lawn requires it, because of its size, or because it can’t be cut by a push-mower or a scythe. The scythe in particular is a great way to cut grass, and it’s also a great workout for one’s back and abdomen. It’s been around for millennia. It’s only been replaced by machinery during the last couple of centuries.

If you live in the suburbs, then this next picture should be familiar to you.

That, of course, would be landscaping day, or if you happen to live within a larger community that has a lot of lawns, this would be part of landscaping week, which would happen every month, or worse, during frequent rainfall, every couple of weeks. Every day of that period, the maddening roar of the leaf blowers would be heard all over the compound, gnawing away at your brain, making it impossible to take a nice afternoon nap, or to concentrate on a project.

I find it so inefficient to blow leaves around all day, for hours on end, when a pair of men with a couple of good brooms and some rakes would make short work of those leaves, with no noise at all, no pollution from two-cycle engines, and much less dust. I’ve often seen landscaping teams use tractors to mow little patches of grass where a push mower would have done just fine, or use hedge trimmers to walk for entire yards and trim little weeds here and there, when a man could have simply pulled them up by the roots.

I associated this sort of inefficiency, expense of petrol, noise and air pollution with the US, because so much gets wasted there these days, by people who feel entitled to everything the country has to offer, even though they offer little to nothing in return. So I was surprised to find the same waste had arrived in Romania, where my wife and I currently reside.

Here people still use scythes to cut the grass in the countryside. It’s a wonder to behold a good scythe-handler. A single man can make short work of an entire hillside in an afternoon. And it’s even more beautiful to hear the noise a sharpened scythe makes as it cuts through long grass: a metallic whoosh, coupled with a slight singing of the blade at the apex of its swing. Every other noise of nature is perfectly audible: the birds, the bees, the distant bleating of sheep, the breeze blowing through the grass and the edge of a forest nearby… It’s wonderful!

And yet, the noxious use of leaf blowers and hedge trimmers has found its way into Romanian cities, probably brought here through the export of popular American culture. Here, too, we can see workers parading through our street and through the city center with leaf blowers and hedge trimmers, making a huge noise of it all, for days on end. It’s such a pathetic (and polluting) spectacle. The noise is unbearable. Here we have tall brick buildings, built by the Saxons. These cities seem made for echoes. The wall of noise obliterates everything around. It bounces off the walls and can be heard hundreds of yards or kilometers away. It’s such a waste.

It was but a few short years ago that the city would hire scythe-men to come and cut the grass. In a few short hours, with a few swoops of the scythe, they’d be done, and someone would come after them to gather up the cut grass. It was peaceful and quiet. Now, we’re polluted with noise, and the blasted filthy smoke from the blowers and trimmers.

The sad part is that here, the public lawns found on streets and in city parks are not of the scale found in the States. They’re small. And Eastern European grass is soft. If one must use more modern machinery, they could easily switch to push mowers and be done in the same amount of time, without all the ridiculous noise and smoke.


Solar windows finally feasible

Back in 2004, I wrote about an idea of mine, to integrate solar panels into house or apartment windows, and thus help offset the cost of electricity. I’m glad to say it’s come to fruition. The technology to do this has been discovered. Granted, it’s still in the research phase, and the efficiency of these 1st generation solar windows is only 1.7%, but I’m thrilled to see that it’s a workable idea, and look forward to the day when we can purchase these windows from a store, presumably with a higher efficiency and a long working expectancy.

Richard Lunt, one of the researchers who developed the new transparent solar cell, demonstrates its transparency using a prototype cell. Photo credit: Geoffrey Supran and Cosmic Log,

Thanks to RAPatton on FriendFeed, who made me aware of this!


POLLI-BRICKS reduce plastic bottle pollution

Plastic pollution is a huge problem. Most everyone has heard of the floating plastic islands in our oceans (the biggest is in the Pacific Ocean, but there are several others), all of which are made up of plastic bottles, wrappers, bags and other plastic waste that can float. They don’t break down. They only break into smaller pieces, which are still plastic and continue to pollute over time. For a wonderful primer on the subject, check out Dianna Cohen‘s talk at TED about it.

MINIWIZ, a Taipei company, has come up with an innovative “brick” design they call POLLI-BRICKS. They’re made from 100% recycled PET polymer (plastic bottles) collected from plastic waste reservoirs. This means that instead of ending up in the floating plastic islands, plastic waste can be re-purposed into bricks that can be used as building materials. Because they’re hollow and translucent (but not transparent, for those concerned about privacy), they have inherent thermal insulation, offer natural lighting during the day, and can be embedded with LED lights and solar panels for night lighting. They’re also durable, fire-resistant, interlock readily, and can be manufactured on-site. Check out the two videos embedded below, one recorded at CES by InfoWorld, and another showing how sturdy a small bridge built out of these bricks can be.

There are more videos posted on the MINIWIZ channel at YouTube.

[via Greenopolis]

How To

How to make a compost tumbler

Last year, I made a composter using this plan from Boys’ Life Magazine. I modified the wooden frame somewhat, in order to use more wood screws and brackets — not bolts, nuts and washers — because that’s what I had to work with.

Before I recommended the design to others, I wanted to see how well it would hold up over a winter, and after proper use. It’s a year later, and I can tell you it’s held up just fine, so feel free to build your own if interested.

There are a few things to know that might help as you put your composter together:

  • Make the legs as wide as possible. There is a lot of torque generated by the tumbler as you rotate it to mix the compost. If the legs are too short, your composter is liable to tumble over.
  • Don’t drill the holes for the center axis (the pipe) at the middle of the barrel. Do it more toward the bottom of the barrel. This is because you can’t load the barrel completely with compost — it’ll become impossible to turn it, and the weight may also tear its sides, as you’re using them for support. You’ll likely load it a quarter-full or half-way full, and this means its center of gravity will be lower than the middle of the barrel. If the axis of rotation is at its middle, but the center of gravity is lower, you’ll be struggling to rotate it as you bring its bottom up. So make the axis lower, and it should make it easier for you to tumble it.
  • The pipe running through the barrel may be a nice and simple way to get the barrel to rotate, but it makes it difficult to unload the compost with a shovel. It doesn’t all come out by simply turning it upside down, so be prepared to reach in there with a scoop or something smaller than a shovel and dig out the compost. It’s not going to be pretty, I’ll tell you that right now.
  • Be prepared to drill more aeration holes into the side of the barrel than you think are necessary. Drill as many holes as you think are needed at first, but if your compost starts to smell bad even though you’re tumbling it, that means it’s not getting enough air, so drill more holes.

I think that’s it. Happy composting!

In case the original article from Boys’ Life Magazine ever goes offline, you can also download it in PDF format here: Make a compost tumbler — Boys’ Life magazine.