this post was submitted on 13 Oct 2024
709 points (91.7% liked)

Fuck Cars

9818 readers
98 users here now

This community exists as a sister community/copycat community to the r/fuckcars subreddit.

This community exists for the following reasons:

You can find the Matrix chat room for this community here.

Rules

  1. Be nice to each other. Being aggressive or inflammatory towards other users will get you banned. Name calling or obvious trolling falls under that. Hate cars, hate the system, but not people. While some drivers definitely deserve some hate, most of them didn't choose car-centric life out of free will.

  2. No bigotry or hate. Racism, transphobia, misogyny, ableism, homophobia, chauvinism, fat-shaming, body-shaming, stigmatization of people experiencing homeless or substance users, etc. are not tolerated. Don't use slurs. You can laugh at someone's fragile masculinity without associating it with their body. The correlation between car-culture and body weight is not an excuse for fat-shaming.

  3. Stay on-topic. Submissions should be on-topic to the externalities of car culture in urban development and communities globally. Posting about alternatives to cars and car culture is fine. Don't post literal car fucking.

  4. No traffic violence. Do not post depictions of traffic violence. NSFW or NSFL posts are not allowed. Gawking at crashes is not allowed. Be respectful to people who are a victim of traffic violence or otherwise traumatized by it. News articles about crashes and statistics about traffic violence are allowed. Glorifying traffic violence will get you banned.

  5. No reposts. Before sharing, check if your post isn't a repost. Reposts that add something new are fine. Reposts that are sharing content from somewhere else are fine too.

  6. No misinformation. Masks and vaccines save lives during a pandemic, climate change is real and anthropogenic - and denial of these and other established facts will get you banned. False or highly speculative titles will get your post deleted.

  7. No harassment. Posts that (may) cause harassment, dogpiling or brigading, intentionally or not, will be removed. Please do not post screenshots containing uncensored usernames. Actual harassment, dogpiling or brigading is a bannable offence.

Please report posts and comments that violate our rules.

founded 3 years ago
MODERATORS
 

"It's not like the government is forcing you to buy a car!"

If you live in a city with parking minimums, yes they fucking are.

you are viewing a single comment's thread
view the rest of the comments
[–] douglasg14b@lemmy.world 0 points 1 month ago* (last edited 1 month ago) (1 children)

I live in a country with a propensity for dark cement tiles, i really doubt panels are causing an uptick in heat

Of course they are (having an effect) why wouldn't they?

Any change in albedo modifies how much radiation is absorbed and emitted and the wavelengths it's emitted at.

Sure one tile doesn't do much but it does do something by a measurable degree. Even if tiny, it's still quantifiable.

[–] Taleya@aussie.zone 3 points 1 month ago (2 children)

So you're telling me if I have a house that's entirely covered in dark cement tiles but put solar panels up my microclimate temperature would rise?

[–] EddoWagt@feddit.nl 1 points 1 month ago

If anything I'd expect it to be cooler as solar panels also reflect a lot of light

[–] douglasg14b@lemmy.world -2 points 1 month ago* (last edited 1 month ago) (2 children)

Cities for example have their own microclimate partially because of the change in albedo.

You're literally talking about something that is well known well documented and well understood and has been for decades.

If you change the albedo of a surface that surface changes it's absorption of solar radiation. That surface will be warmer or cooler in the Sun. As a fundamental concept (ignoring more exotic materials and concepts). This means that that surface contributes or detracts from the climate in various ways.

I don't know what's so difficult about this :/

If you cover the entire country of Australia with black tiles do you really expect that there would be absolutely no change or difference than if you cover the entire country of Australia with white tiles?

[–] Taleya@aussie.zone 2 points 1 month ago* (last edited 1 month ago)

Are you actually reading what i am saying?

I mocked the impact of solar panels on "heating the planet" compared to the sheer amount of dark roofing surfaces in my country. It's a fair call.

The albedo of a solar panel is around 0.1 (90% absorption) BUT not all the sunlight energy absorbed by a panel is converted into heat. Call it 20% efficiency, 10% reflection, 70% left to end up as heat. That's less than grass or bare soil.

What is the albedo of a black cement roofing tile?

What effect on the surrounding microclimate will having solar panels overshadow these tiles have?