Category Archives: gaia

Finally A Plausible Tidal Energy Program – If it is not Scottish it is rubbish

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I skip the light fandango.

http://www.wired.co.uk/news/archive/2012-06/15/scottish-undersea-turbines

Technology

Largest tidal arrays in the world to be built in Scotland

15 June 12

Scotland will see the world’s largest tidal arrays constructed off its coast, as the first large-scale rollout of tidal energy generation.

A trial with one 30m turbine, the HS1000, anchored to the ocean floor in a fast-flowing channel near the Orkney Islands, raised one megawatt of electricity — enough to power around 500 homes. Now, Scottish Power is planning on building two farms of turbines off the Scottish coast.

The project at the Sound of Islay should hopefully generate 10MW, and then the later project off Duncansby Head (the most northeasterly point of Scotland) should generate around 95MW. While individual turbines have been trialled across the world, the arrays will be the largest of their kind, with local communities having their power provided by renewable tidal sources.

The turbines — built by Andritz Hydro Hammerfest, a Norwegian firm — represent a tricky engineering challenge. Considerations for wild plants and fish means that the blades can’t move too fast, and the turbines must be located in areas where there is a reliably fast current travelling at at least 2.5m/s (such as the Sound of Islay, a narrow passage between the Scottish mainland and the island of Jura).

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Go there and read. More tomorrow.

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Will We Ever Live On The Moon – Humans prepare to trash the Solar System

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When I posted on the transit of Venus, I said that environmentalists are concerned about the environment and that does not end at the Earth’s atmosphere or the heliosphere of even our galaxy. Human’s track record ain’t great so far. We tend to just throw stuff out there because we can. We have fired rockets willy nilly at planets some of which landed successfully but will be on those planets forever. The ones that didn’t go so well are smashed all over the place. We trashed the moon and anyone flying by the Earth would just go EWWWWWW. Look at that mess. So now what is proposed – Mining and Manufacturing. Environmentally things we do just the bestest. This is not good. Double billing here. This guy:

http://blogs.discovermagazine.com/badastronomy/2012/06/14/will-we-ever-live-on-the-moon/

wrote the op/ed piece here:

http://www.bbc.com/future/story/20120613-will-we-ever-live-on-the-moon

This is not an attack on the writer by the way.

Will we ever… live on the Moon?

14 June 2012

by PHIL PLAIT

Will mankind once again walk on the lunar surface? I wouldn’t even hesitate to say “yes”, because the future is long, and who in the early 1950s would have dared to predict that we would even land a craft on the Moon within 20 years? But in this case, the answer probably isn’t as interesting as the question itself – more specifically, when, and why, and how will we do it?

I can think of many possible scenarios that could lead to us colonising the Moon: an extended economic boom that allows us to fund ambitious space exploration; a breakthrough in launch costs which makes them drastically cheaper; or the discovery of some vital natural resource on the Moon. But I don’t like betting on breakthroughs.

A better question is then: “What is a likely way we’ll end up with a human presence on the Moon?” Given what we know today and extrapolating from there, I have a thought on how this could happen.

Looking into the abyss

Before we talk about settling down on our rocky neighbour, we have to ask why we should head there in the first place.

Looking back on nearly 60 years of space exploration, the answer is obvious. Satellite communication. Weather prediction. Understanding of climate change. Instantaneous broadcasting of radio and television. Global positioning technology. Detailed mapping of the Earth. Environmental monitoring. Government intelligence gathering (which has prevented far more conflict than people credit it for). Disaster warning.

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Go there and read. More next week.

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Video About How The Planet Can Be Saved – Environmental claymation

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Here we go again . I am going to try to share a video from a cool website I found. You all know how bad I am at this so do not hold your breath.

http://cleantechnica.com/2012/06/08/the-healing-power-of-new-energy-friday-fun/

The Healing Power of New Energy (Friday Fun)

June 8, 2012 By
Here’s a fun video in support of clean energy and a healthy planet that I ran across on NewEnergyNews recently:

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Well for now I failed but if you go to the New Energy News link you can see it.

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Go there and see the video from The Colbert Report. More tomorrow.

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Being An Environmentalist Is Not Limited To Earth – Transit of Venus

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My ability to post videos is limited by my technological inadequacies. However, we care about the environment exactly because we care about the solar system and the universe. So since it will not happen again in my lifetime here is a short clip of the transit of Venus across the face of the sun.

 

http://www.youtube.com/watch?v=9iDjo9D4t78&feature=colike

Published on Jun 5, 2012 by

Transit of Venus
6/5/12 7:17pm with 8″ Telescope and Canon Rebel T2i
Wake Forest, NC

Category:

Science & Technology

Tags:

License:

Creative Commons Attribution license (reuse allowed)

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Go there and gaze lovingly. More tomorrow.

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Hot Fun In The Summertime – Acting eco friendly is important

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This is just a fun little site for kids. We are on summer vacation after all.

http://green.thefuntimesguide.com/2012/03/living-green.php

Americans Are Becoming More Environmentally Aware & Conscious Of Their Behaviors

A new national survey of more than 1,000 Americans found that ‘being green’ is becoming more mainstream and has less of a stigma tied to it than it once did.

According to the survey, getting caught littering is more embarrassing to Americans than getting caught cheating on taxes.

Other behaviors that people admit to being socially aware that they’re doing include:

  • not recycling plastic bottles
  • driving a vehicles that gets only a few miles per gallon
  • letting the water run while brushing teeth

It’s clear that it is no longer just a highly motivated ‘few’ who are conscious about their own environmentally friendly actions these days.

It’s The Little Things

For most, it’s important to start small in order to stay committed to living green.

In  my case, I set a few simple actions as my New Year’s Resolutions a few years ago.

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Go there and read. More tomorrow.

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Milwaukee Has A Pretty Phenomenal Transition Movement – Maybe this post will stay

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I tried to post about the Transition Movement in Milwaukee last year or the year before and got slammed for it by some editor/publisher woman there for using “too much” copyrighted text. She also dissed my unorthodox style. So I took the post down and replaced it with one about transition groups in Boston or Los Angeles. Maybe even the mothership in England. Let us see how this goes this time around.

http://onmilwaukee.com/living/articles/transitionmilwaukee.html?viewall=1

Transition Milwaukee: “we’re all in this together”

By Royal Brevväxling RSS Feed
Special to OnMilwaukee.com

E-mail author | Author bio
More articles by Royal Brevväxlin

Published May 30, 2012 at 5:31 a.m.

Transition Milwaukee (TM) is part of an international movement formed, in part, in response to the peak oil crisis and more generally around issues of climate change, economic security and permaculture principles.

Peak oil is a non-controversial acknowledgement from government, academic and industry experts that fossil fuels, a finite resource, reach a peak moment of production and necessarily begin to decline.

Any controversy that peak oil generates is from determining when this peak production will occur, from a few decades into the future to it already peaking in 2007. Bigger questions about what a society that can’t rely on fossil fuels looks like also stir up debate – and emotions.

Permaculture principles are those that inform design and systems theories about how to develop not only sustainable but self-maintained and regenerative ecological systems. Modern agriculture and societies based on oil consumption are not regarded as sustainable.

TM’s goals involve a “whole-systems” approach toward making our economies sustainable and regenerative for seven generations into the future.

“Right now, Transition Milwaukee acts as a network of concerned activists who are working toward reducing the radius in which we get our goods and services, food, water and shelter,” says Jessica Cohodes, TM steering committee leader, press contact and “big-picture synthesizer.”

Members of TM don’t really have official titles. Although it has a steering committee, TM is organized non-hierarchically.

“Transition Milwaukee has always been a group, grass-roots endeavor about the community, from the ground up. Part of its founding philosophy is that it isn’t someone else’s job to get us off oil, but our job,” says Erik Lindberg, a former TM steering committee member who regularly gives presentations on energy and the environment.

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Go there and read. More tomorrow.

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The Dragon Has Landed – You go space billionaires

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So this is happening as we speak, they are repositioning the solar panels for docking in 16 minutes. So they are a kiss away from either clicking or blowing up . Which ever is going to happen.

http://www.nasa.gov/multimedia/nasatv/index.html

They look like they are about 10 feet apart. That is amazing.

http://www.ajc.com/news/nation-world/dragon-capsule-on-course-1446050.html

Dragon capsule on course for space station arrival

By MARCIA DUNN

The Associated Press

CAPE CANAVERAL, Fla. — The privately bankrolled Dragon capsule approached the International Space Station for a historic docking Friday after sailing through a practice rendezvous the day before.

The unmanned SpaceX Dragon was on track most of the morning to deliver a half-ton of supplies and become the first commercial vessel to visit the space station. But as the capsule drew within 100 feet, flight controllers commanded it to retreat.

The capsule backed off to 230 feet as the SpaceX company worked to resolve a problem with the on-board tracking sensors. Stray reflections from the Japanese part of the space station were interfering with the Dragon’s laser-based sensors, officials said. SpaceX mission controllers quickly fixed the trouble and resumed the docking operation.

On Thursday, the capsule came within 1½ miles of the space station in a practice fly-by. It returned to the neighborhood early Friday so Kuipers and U.S. astronaut Donald Pettit could capture it with a robot arm. First, the capsule went through a series of stop-and-go demonstrations to prove it was under good operating control.

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Go there and look or read. More tomorrow.

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Fine Kettle Of Fish They Have Got Us IN – or actually out of I guess

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Whatever. It is real rare that I do a Purely environmental post. Yes it is true if there is no food to eat, then there is no private housing market, thus no residential energy market. But man that is a stretch. Still fishing vessels use huge amounts of energy, at least the large commercial ones do, so they pollute the water as well as strip it bare.

The end of fish, in one chart

Posted by at 08:00 AM ET, 05/20/2012

Want to see how severely we humans are scouring the oceans for fish? Check out this striking map from the World Wildlife Fund’s 2012 “Living Planet Report.” The red areas are the most intensively fished (and, in many cases, overfished) parts of the ocean — and they’ve expanded dramatically since 1950:

Between 1950 and 2006, the WWF report notes, the world’s annual fishing haul more than quadrupled, from 19 million tons to 87 million tons. New technology — from deep-sea trawling to long-lining — has helped the fishing industry harvest areas that were once inaccessible. But the growth of intensive fishing also means that larger and larger swaths of the ocean are in danger of being depleted.

Daniel Pauly, a professor of fisheries at the University of British Columbia, has dubbed this situation “The End of Fish.” He points out that in the past 50 years, the populations of many large commercial fish such as bluefin tuna and cod have utterly collapsed, in some cases shrinking more than 90 percent (see the chart to the right).

Indeed, there’s some evidence that we’ve already hit “peak fish.” World fish production seems to have reached its zenith back in the 1980s, when the global catch was higher than it is today. And, according to one recent study in the journal Science, commercial fish stocks are on pace for total “collapse” by 2048 — meaning that they’ll produce less than 10 percent of their peak catch. On the other hand, many of those fish-depleted areas will be overrun by jellyfish, which is good news for anyone who enjoys a good blob sandwich.

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Go there to see the graphs and maps and read. More tomorrow.

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Last Energy Tips For This Summer – Of course it is another energy company

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I am fresh out of thoughts on this subject. It all boils down to a decision that ever American has to make. Am I going to take power from the grid or not? If I am when and how? My answer is I would prefer to not get my power from the grid and if I must then as little as possible.

http://www.novec.com/Power_Use_It_Wisely/SummerEnergyTips.cfm

Summer Energy Tips

Summer and the high temperatures it brings can cause increased electrical loads. Keep cool this summer and save energy costs by following these simple tips around the house.

Summer cooling tips

  • Turn off unnecessary lights. Much of the energy from a light bulb is heat.
  • Shut doors to unused rooms.
  • Make sure furniture or drapes do not block your registers for supply and return air.
  • Wear thin, loosely fitting clothes and you may not have to keep room temperatures as cool.
  • Keep the sun out of your house. Close blinds, shades or curtains during the hottest part of the day.
  • On mild days, open windows for natural ventilation and turn the air conditioning off.
  • Use portable or ceiling fans. Even mild air movement of 1-mph can make you feel 3-4° cooler.
  • Apply sun-control or other reflective films on south-facing windows.

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Go there and read. More next week.

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Summer Energy Tips – Pretty fancy digs in this one

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Well even middle class and rich people gotta pitch in.

http://www.wholeliving.com/136091/keep-cool-summer-home-energy-tips/@center/136755/green-home-guide

Keep Cool with Summer Home Energy Tips

Green Your Home, Slash Your Bills

The prospect of dizzying energy bills, maxed-out power grids, and killer heat waves poses a dilemma for the eco-minded. Crank up the AC, and you’ll burn through countless kilowatts — not to mention your budget. Listen to your green conscience, and you’ll pay with sweat.

But when you maximize the efficiency of your home’s cooling system and adopt smart, low-cost strategies, you can save money and still beat the heat. In fact, by eliminating wasteful habits and power guzzlers, you could cool your home with up to 50 percent less energy and save more than $400 on annual utilities. With 100 million tons of heat-trapping CO2 emitted every year as a result of residential air-conditioning, your new habits will amount to nothing less than a step toward global cooling

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Go there and read. More tomorrow.

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