[zeristor]

I went for a six hour walk in the rain in April and got sunburnt in the UK.

I was surprised.

[sacnoradhq]

Clouds attenuate UV-A in unexpected ways. UV-B and -C leads to aging and skin cancer.

UV light is also bad for the eyes.

https://www.americanscientist.org/article/sunshine-on-a-clou...

https://pubmed.ncbi.nlm.nih.gov/10872925/

[News-Dog]

Healthy Sun Exposure[1,2] depends on your Latitude[3], Hemisphere[4,5], Time of Day (Dawn & Dusk),

Exposure Time, Skin and Eye Type[6], Coverings (Clothing, Sunscreen, UV Filtering Glasses)[7,8]

[1] Health Effects of Sunlight Exposure : https://en.wikipedia.org/wiki/Health_effects_of_sunlight_exp...

[2] Ultraviolet - Human Health-related effects : https://en.wikipedia.org/wiki/Ultraviolet#Human_health-relat...

[3] Latitude : https://en.wikipedia.org/wiki/Latitude

[4] Ozone Depletion - Effects : https://en.wikipedia.org/wiki/Ozone_depletion#Effects

[5] NASA - Ozone Watch : https://ozonewatch.gsfc.nasa.gov/

[6] Health Effects of Sunlight Exposure - Benefits of Optic Exposure & Effects on Eyes

: https://en.wikipedia.org/wiki/Health_effects_of_sunlight_exp...

[7] Sunscreen : https://en.wikipedia.org/wiki/Sunscreen

[8] Ultraviolet - Sunscreen Safety Debate : https://en.wikipedia.org/wiki/Ultraviolet#Sunscreen_safety_d...

[sacnoradhq]

Ozone: hey, at least we managed to ban CFCs internationally.

If we can do that, it's confusing how we can't incrementally tackle climate change with selective international agreements that would make the most impact for the socio-economic burden.

[latchkey]

> Ozone: hey, at least we managed to ban CFCs internationally.

Ban doesn't mean they aren't still produced.

https://research.noaa.gov/article/ArtMID/587/ArticleID/2843/...

[News-Dog]

The Ultraviolet Index, or UV Index : https://en.wikipedia.org/wiki/Ultraviolet_index

UV Index - The Sun Safety Scale - Forefront Dermatology (2017)

: https://forefrontdermatology.com/uv-index-sun-safety-scale/

A Guide to the UV Index (PDF) : https://www.epa.gov/sites/production/files/documents/uviguid...

Ultraviolet Index - External links - 'UV Index Forecast' - 'Real-time Global Ultraviolet Index'

: https://en.wikipedia.org/wiki/Ultraviolet_index#External_lin...

The Fitzpatrick Scale (aka) Fitzpatrick Skin Typing test; or Fitzpatrick phototyping scale

: https://en.wikipedia.org/wiki/Fitzpatrick_scale

Developed in 1975 by American dermatologist Thomas B. Fitzpatrick,

as a way to estimate the response of different types of skin to ultraviolet (UV) light.

Season : https://en.wikipedia.org/wiki/Season

Seasonal Affective Disorder (SAD) : https://en.wikipedia.org/wiki/Seasonal_affective_disorder

Light Therapy : https://en.wikipedia.org/wiki/Light_therapy

Vitamin D : https://en.wikipedia.org/wiki/Vitamin_D

Vitamin D Deficiency : https://en.wikipedia.org/wiki/Vitamin_D_deficiency

Vitamin D Toxicity (aka) Hypervitaminosis D : https://en.wikipedia.org/wiki/Hypervitaminosis_D

[dkrest]

But longer UV-A wavelengths can help with progressing myopia https://pubmed.ncbi.nlm.nih.gov/28063778/

Black-and-white thinking is unsciеntific.