Green

Environmentally friendly, green ways of living

There are 363 posts filed in Green (this is page 12 of 37).

BBC News – Nuclear fusion milestone passed at US lab

We’re getting closer to nuclear fusion energy!

Researchers at a US lab have passed a crucial milestone on the way to their ultimate goal of achieving self-sustaining nuclear fusion.

Harnessing fusion – the process that powers the Sun – could provide an unlimited and cheap source of energy.

But to be viable, fusion power plants would have to produce more energy than they consume, which has proven elusive. Now, a breakthrough by scientists at the National Ignition Facility NIF could boost hopes of scaling up fusion.

NIF, based at Livermore in California, uses 192 beams from the world’s most powerful laser to heat and compress a small pellet of hydrogen fuel to the point where nuclear fusion reactions take place.

The BBC understands that during an experiment in late September, the amount of energy released through the fusion reaction exceeded the amount of energy being absorbed by the fuel – the first time this had been achieved at any fusion facility in the world.

via BBC News – Nuclear fusion milestone passed at US lab.

On letters from climate-change deniers – latimes.com

And those scientists have provided ample evidence that human activity is indeed linked to climate change. Just last month, the Intergovernmental Panel on Climate Change — a body made up of the world’s top climate scientists — said it was 95% certain that we fossil-fuel-burning humans are driving global warming. The debate right now isn’t whether this evidence exists clearly, it does but what this evidence means for us.

Simply put, I do my best to keep errors of fact off the letters page; when one does run, a correction is published. Saying “there’s no sign humans have caused climate change” is not stating an opinion, it’s asserting a factual inaccuracy.

via On letters from climate-change deniers – latimes.com.

Pine tree mystery

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Over the past few weeks, I began to notice that nearly all of the pine trees surrounding my office are starting to turn brown. This seemed quite unusual to me. I would expect one or two to occasionally die but for nearly all of them to be suffering made me wonder if there might be something serious going on.

I decided to send the North Carolina Forestry Service an email with some pictures and see what they said. I got a call back this morning from Randolph Harrison, the ranger for Wake County, giving me the scoop.

Harrison told me he had visited the site and checked out the trees. The main problem, he said, was that the pines are too close together and competing for sunlight. He said that being so low near Crabtree Creek probably saturates the soil around the pines’ roots. Pines don’t do well where there’s flooding, he said.

I had wondered if the trees might be under attack by pine beetles but Harrison said he hadn’t seen any evidence of that. “Believe me,” he laughed. “if you’ve got a pine beetle problem you’ll know it!”
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Silence and sound

I’ve mentioned this before, but lately it’s been delightfully quiet around the neighborhood. This is the time of year when indoor and outdoor temperatures match up, meaning the constant drone of air conditioners is pleasingly absent.

You don’t tend to notice the noise until it’s gone. Our world is full of so much constant noise that it can be a shock when it’s suddenly quiet again. I wonder how all this racket affects one’s health.

Color Run sees green, leaves Raleigh seeing red

Color Run in Seattle By Scooter Lowrimore (from Flickr)

Color Run in Seattle By Scooter Lowrimore (from Flickr)


A number of residents of Raleigh’s Historic Oakwood neighborhood were not happy to find their cars were missing from the street Saturday morning. The Color Run, a for-profit road run featuring dyed corn starch packets, had set up for its run through the neighborhood. Unlike most road races, organizers insisted that all the cars be removed from the street, most likely because of the colossal mess the corn starch packets make.

Raleigh Police posted “no parking” notices with as little as 13 hours notice, leaving many residents unprepared. Tow trucks hauled off their cars and stuck them with bills upwards of $150 to get them back. This in addition to the godawfully sticky corn starch that trashed their streets and homes.

Needless to say, residents were livid at their cars being taken and their neighborhood trashed. Council members were summoned and the city has agreed to reimburse residents for their towing charges.

I watched after the run as contractors worked to clear the starchy muck off of Wilmington Street near Polk Street. The contractor used a bleach mixture for this work, pouring this chemical-laden broth into our storm drains for eventual draining into the Neuse River. Nice move. I made a call to the city’s stormwater department when I saw this and begged someone to check it out. The city responded that this was just one of many issues they are collecting about the run.

Several runners question the motives of a for-profit company closing down city streets and using city resources. I watched at the end as a decal-laden Color Run car was loaded onto a tractor trailer that already held about 8 other shiny company vehicles. Apparently business is good!
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Goldsboro Broken Arrow

Yesterday, news outlets ran a story based on newly-declassified documents concerning the 24 January 1961 crash of a B-52 near Goldsboro which resulted in the release of two megaton-sized atomic bombs. I became captivated by the story and spent what free time I had today collecting information on it for its Wikipedia page.

I had known about the crash for some time as UNC’s ibiblio server has hosted documents about it for nearly two decades. It seemed to be an interesting plane crash story with a nuclear angle but it make me worried. What I did not know until today is just how close one bomb was to nuclear detonation, vaporizing much of eastern North Carolina and raining deadly fallout all over the East Coast.

Yesterday’s stories highlighted the fact that only one switch kept one of the bombs from completing its arming cycle and setting off a detonation 250 times as powerful as the bomb that leveled Nagasaki, Japan. While that’s certainly scary enough, today’s sleuthing revealed a much more terrifying situation. It turns out when the second bomb was found it had been fully armed. Its arm switch had been activated. No one knows why the bomb plummeted harmlessly into the ground at 700 MPH instead of reaching a thermonuclear critical mass and wiping out all living things within a 10 mile radius. Only sheer blind luck saved us from nuclear incineration.
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Hallie’s IMatterYouthNC video ad

Frank Eaton films Hallie

Frank Eaton films Hallie


Friday afternoon, we spent a few hours with Raleigh documentary filmmaker Frank Eaton at the N.C. State Arboretum. Frank volunteered to make an informational video for Hallie’s IMatter Youth NC climate-change march she’s organizing for Sept. 28th in Raleigh. Along with our friends the Maugers, we set up a shooting location among the greenery of the arboretum while Hallie recited her lines for the camera.

Frank is an expert videographer and a fun guy to be around. He really connected with the kids, too, making it a fun experience.

The video came out beautifully and Hallie’s climate change rally is quickly generating attention. We hope the momentum continues to build through 28th!

If you’d like to know more, check out the IMatter Youth NC website. And if you’d like to look good on camera, check out Frank’s Bully Documentary Company.

Tigo responds

It didn’t take long before I got a response from Tigo when I complained about needed a subscription to my data. I got emails from both the cofounder, Ron Hadar, and the VP of Professional Services, Scott McCalmont. Ron’s email came in around noon and Scott’s followed soon afterward.

I give points to both Ron and Scott for their quick, personal responses. Both of them acknowledged my viewpoint but emphasized their need to run a business. Scott’s response barely hid his contempt, however, which is not what I would expect from someone in a customer-facing role:

For example, we send an alert to customers when their Management Unit goes offline. You clearly don’t think this is useful or valuable, but many customers do.

On the other hand, I am an irritated, snarky customer and my type is not always fun to deal with, so touché.

Perusing the Tigo forums, I see other Tigo owners are also unhappy with the subscription aspect: Continue reading →

Tigo bye bye

Tigo_Logo_small

Recently I posted how I’m irked that Tigo wants me to pay to access data that belongs to me. In disgust, I removed my Tigo from my network yesterday.

Lo and behold I got this dramatic email from Tigo’s datacenter early this morning:

PV System Alert

Turner, Mark – System ID: blahblah

Monitoring and Maximizer system not accessible

Details:

The monitoring and Maximizer system has not checked in to the Tigo Energy Data Center recently. This usually indicates a problem with the network connection, meaning that current data for the system will not be displayed on the Summary Page. However, it could also indicate a problem with the Tigo Energy Management Unit.

Troubleshooting Suggestions:
– Verify that the network is working properly (Network Troubleshooting Guide)
– Verify that the Management Unit is receiving power

Please visit the Summary Page to view system performance.

For additional help, please contact your installer or Tigo Energy Technical Support.

Since I couldn’t care less about Tigo not getting the data they want me to pay for, I send them this snarky response:
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LED lights

LED bulb. Excuse the white balance as my phone camera has no setting for LED.

LED bulb. Excuse the white balance as my phone camera has no setting for LED.

I was once an enthusiastic supporter of CFL bulbs, with their promise of long life. It didn’t take long before I determined those claims were bunk, leaving me with a pile of hazardous waste. I can’t say I pined for the says of incandescent bulbs but I was anxious to find something better than CFLs.

Then a few months ago I saw that Costco was selling deeply discounted LED bulbs. Normally $12, they were on sale for $6. Now that would normally be a lot of money for a light bulb but the promise of going 22 years before replacing it seemed to make it worthwhile. I bought one bulb for our den as a test and then bought a half-dozen of them for our bathroom. Why the bathroom? Because when hung upside-down, CFL bulbs burn out about 5 times as fast in my experience.
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