The Problem of Light Pollution - and Five Easy Ways to Fix it!

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The Problem of Light Pollution - and Five Easy Ways to Fix it!

#1

Post by helicon » Wed Dec 04, 2019 11:49 pm

-Michael
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Re: The Problem of Light Pollution - and Five Easy Ways to Fix it!

#2

Post by Juno16 » Thu Dec 05, 2019 12:50 am

TED talks are very informative and i really enjoy watching them.

Thanks Michael. We have a tough battle ahead!

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Re: The Problem of Light Pollution - and Five Easy Ways to Fix it!

#3

Post by Makuser » Thu Dec 05, 2019 1:08 am

Thanks so much for sharing this fantastic video with us on here Michael. Kelsey really hits the nail on the head with this lecture.
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Re: The Problem of Light Pollution - and Five Easy Ways to Fix it!

#4

Post by Doug James » Thu Dec 05, 2019 2:37 pm

Thanks for posting this, it is a tough battle.
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Re: The Problem of Light Pollution - and Five Easy Ways to Fix it!

#5

Post by yobbo89 » Thu Dec 05, 2019 3:13 pm

watching it. dropped everything and forgot i was browsing this forum, i'm learning about dog whelks..
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Re: The Problem of Light Pollution - and Five Easy Ways to Fix it!

#6

Post by yobbo89 » Thu Dec 05, 2019 3:22 pm

she lost me when she talked about obesity and cancer linked to artificial light aka light pollution , i'm to believe that some of these stats are just coincidence and people just look at numbers/data rather than direct science.i always question analytics, really comes to where who what when it's being recorded,every day someone comes up with some bs like eating grilled burgers or drinking orange juice is linked to cancer.. what ever ..
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Re: The Problem of Light Pollution - and Five Easy Ways to Fix it!

#7

Post by SkyHiker » Thu Dec 05, 2019 3:41 pm

It was entertaining but the 5 fixes for individuals do not address the street and building / advertisement lights, which are the main culprits. Maybe they can be fixed in the same way but there should be strict legislation in place to enforce it.
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Re: The Problem of Light Pollution - and Five Easy Ways to Fix it!

#8

Post by Star Dad » Thu Dec 05, 2019 8:15 pm

The correlation to cancer rates is based on the lack of melatonin being produced when the body is subjected to blue spectrum lighting. This is especially true with 5,000K lights. Both the American Medical Association and the Connecticut State Medical Society gave written testimony as to the adverse effects of blue wavelength light. Night time workers are especially prone to increased cancer rates. And apparently this is actually causal - not just a correlation.

I am NOT a physician, but I understand that in a darkened room at night the body produces melatonin and blue light interrupts this. I don't know why this is so, but that is what the IDA,AMA, and CSMS says. The https://Darksky.org has a host of research papers. The following link is the result of my search using the word melatonin. http://alandb.darksky.org/search.php?fo ... =melatonin

I am at least happy to say the CT has a statute on the books requiring all new lighting to be fully shielded. It is being implemented state wide for new construction and as old fixtures die/need replacement. Unfortunately it doesn't require the 3,000K lighting or less (yellow) and so a lot of 5,000K lights have already been put in place. B ut many towns have smartly started using the 3,000K light. (For reference the old high pressure sodium lights were 2,200K - orangeish).
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Re: The Problem of Light Pollution - and Five Easy Ways to Fix it!

#9

Post by 515bonner » Fri Dec 06, 2019 2:19 am

For those with those obnoxious LED street lights there is a solution!
A little back story...we have a 175 ft property line on the south side of our home. There is a street light on each corner.
The one on the east side lit up our driveway and bedrooms like you were at a ball game. I could actually take a newspaper and go 150ft to the north side of the property, and read it.
Recently we were having an outside garage/workshop built and the power distribution line to the house had to be moved from one pole to another. An engineer from the power company came out to access what had to be done. While she was there I told her about that light and if there was anything that could be done. She came out later that night and was astounded at the situation!
Long story short, several days later, when they moved the line, they put a shield on the north side of the light (sort of a 1/2 cup cover) and turned the brightness down (our cost =$0).
Now the light still illuminates the sidewalk and street, but our driveway is in almost total darkness!

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Re: The Problem of Light Pollution - and Five Easy Ways to Fix it!

#10

Post by Lady Fraktor » Fri Dec 06, 2019 6:31 am

Check your local regulations on light intrusion, most places have something in place to deal with situations such as this.

https://www.darksky.org/france-light-po ... -law-2018/
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Re: The Problem of Light Pollution - and Five Easy Ways to Fix it!

#11

Post by yobbo89 » Fri Dec 06, 2019 8:15 am

Star Dad wrote:
Thu Dec 05, 2019 8:15 pm
The correlation to cancer rates is based on the lack of melatonin being produced when the body is subjected to blue spectrum lighting. This is especially true with 5,000K lights. Both the American Medical Association and the Connecticut State Medical Society gave written testimony as to the adverse effects of blue wavelength light. Night time workers are especially prone to increased cancer rates. And apparently this is actually causal - not just a correlation.

I am NOT a physician, but I understand that in a darkened room at night the body produces melatonin and blue light interrupts this. I don't know why this is so, but that is what the IDA,AMA, and CSMS says. The https://Darksky.org has a host of research papers. The following link is the result of my search using the word melatonin. http://alandb.darksky.org/search.php?fo ... =melatonin

I am at least happy to say the CT has a statute on the books requiring all new lighting to be fully shielded. It is being implemented state wide for new construction and as old fixtures die/need replacement. Unfortunately it doesn't require the 3,000K lighting or less (yellow) and so a lot of 5,000K lights have already been put in place. B ut many towns have smartly started using the 3,000K light. (For reference the old high pressure sodium lights were 2,200K - orangeish).
So it's not artificial light that causes cancer?. it's lack of sunlight...
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Re: The Problem of Light Pollution - and Five Easy Ways to Fix it!

#12

Post by notFritzArgelander » Fri Dec 06, 2019 8:48 am

yobbo89 wrote:
Fri Dec 06, 2019 8:15 am
Star Dad wrote:
Thu Dec 05, 2019 8:15 pm
The correlation to cancer rates is based on the lack of melatonin being produced when the body is subjected to blue spectrum lighting. This is especially true with 5,000K lights. Both the American Medical Association and the Connecticut State Medical Society gave written testimony as to the adverse effects of blue wavelength light. Night time workers are especially prone to increased cancer rates. And apparently this is actually causal - not just a correlation.

I am NOT a physician, but I understand that in a darkened room at night the body produces melatonin and blue light interrupts this. I don't know why this is so, but that is what the IDA,AMA, and CSMS says. The https://Darksky.org has a host of research papers. The following link is the result of my search using the word melatonin. http://alandb.darksky.org/search.php?fo ... =melatonin

I am at least happy to say the CT has a statute on the books requiring all new lighting to be fully shielded. It is being implemented state wide for new construction and as old fixtures die/need replacement. Unfortunately it doesn't require the 3,000K lighting or less (yellow) and so a lot of 5,000K lights have already been put in place. B ut many towns have smartly started using the 3,000K light. (For reference the old high pressure sodium lights were 2,200K - orangeish).
So it's not artificial light that causes cancer?. it's lack of sunlight...
Not so fast. The causal chain is artificial (bluish) light depresses melatonin production which interferes with the immune system defending against cancers. Humans have immune responses that fight off about 10-20 cancers in the course of a lifetime. Interference with melatonin and circadian rhythms does harm health.
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