Diana Umpierre, AICP, GISP

@DianaUmpierre
53 Followers
64 Following
245 Posts
Passionate about public policy grassroots-led advocacy, community and nature-centered planning, geography, sustainability, grassroots empowerment, local organic regenerative farming & a night sky free of light pollution and space junk. Proud Boricua.
LinkedInhttps://www.linkedin.com/in/dianaumpierre

โœจ ๐€๐ง๐ง๐จ๐ฎ๐ง๐œ๐ž๐ฆ๐ž๐ง๐ญ! โœจ

๐Ÿ›ฐ Do you want an overview of the technical and scientific aspects of light pollution and radio / optical interference from satellites?

๐Ÿ›ฐ Do you want to learn about the legal avenues for the protection of dark and quiet skies?

Please join the IAU CPS for a Webinar about ๐„๐ฑ๐ฉ๐ฅ๐จ๐ซ๐ข๐ง๐  ๐“๐ž๐œ๐ก๐ง๐ข๐œ๐š๐ฅ ๐š๐ง๐ ๐‹๐ž๐ ๐š๐ฅ ๐๐š๐ญ๐ก๐ฐ๐š๐ฒ๐ฌ ๐ญ๐จ ๐๐ซ๐ž๐ฌ๐ž๐ซ๐ฏ๐ž ๐ƒ๐š๐ซ๐ค ๐š๐ง๐ ๐๐ฎ๐ข๐ž๐ญ ๐’๐ค๐ข๐ž๐ฌ, on 16th or 19th/20th February, depending on your time zone.

#Space #SpaceLaw #SpaceSustainability #DarkAndQuietSkies

#PPOD: Happy Valentine's Day!

โ€œLook again at that dot. That's here. That's home. That's us. On it everyone you love, everyone you know, everyone you ever heard of, every human being who ever was, lived out their lives.โ€ - Carl Sagan

This image was taken by the Voyager 1 spacecraft on 14 February at Saganโ€™s suggestion. Voyager was about 6.4 billion kilometers from our tiny dot of a world and heading out of our solar system.

Credit: NASA

#valentinesday #space #science #scicomm #earth

I want someone better than Joe Biden to be president, which is why Iโ€™m voting for Joe Biden in November.

#USPolitics

wondering what the #Mastodon community thinks about #bluesky . I'm not ready to sign up, but do miss the old blue bird before X-man wanna-be took over
We need to hold our media to account. They are in large part responsible for the mess we are in.
Space Debris Will Block Space Exploration unless We Start Acting Sustainably

We need satellites and rocket bodies designed with an end-of-life plan to keep space uncluttered and navigable

Scientific American
Scores of confused birds crash in Kaikลura, lighting blamed | RNZ News
https://www.rnz.co.nz/news/ldr/486590/scores-of-confused-birds-crash-in-kaikoura-lighting-blamed
Scores of confused birds crash in Kaikลura, lighting blamed

Volunteers have been busy tendering to injured birds after 100 young Hutton's shearwaters crash-landed in the town on Wednesday evening.

RNZ

Just to anticipate likely reactions from people who don't normally follow me...

No, this will probably have little to no effect on crime or traffic safety, and if anything, crime will most likely drop and/or shift to areas with more lighting:

โœฐ https://doi.org/10.1007/s10940-022-09539-8
โœฐ https://doi.org/10.1007/s10940-021-09519-4
โœฐ https://jech.bmj.com/content/69/11/1118.full

Absence of Street Lighting May Prevent Vehicle Crime, but Spatial and Temporal Displacement Remains a Concern - Journal of Quantitative Criminology

Objectives This paper estimates the effect of changes in street lighting at night on levels of crime at street-level. Analyses investigate spatial and temporal displacement of crime into adjacent streets. Methods Offense data (burglaries, robberies, theft of and theft from vehicles, and violent crime) were obtained from Thames Valley Police, UK. Street lighting data (switching lights off at midnight, dimming, and white light) were obtained from local authorities. Monthly counts of crime at street-level were analyzed using a conditional fixed-effects Poisson regression model, adjusting for seasonal and temporal variation. Two sets of models analyzed: (1) changes in night-time crimes adjusting for changes in day-time crimes and (2) changes in crimes at all times of the day. Results Switching lights off at midnight was strongly associated with a reduction in night-time theft from vehicles relative to daytime (rate ratio RR 0.56; 0.41โ€“0.78). Adjusted for changes in daytime, night-time theft from vehicles increased (RR 1.55; 1.14โ€“2.11) in adjacent roads where street lighting remained unchanged. Conclusion Theft from vehicle offenses reduced in streets where street lighting was switched off at midnight but may have been displaced to better-lit adjacent streets. Relative to daytime, night-time theft from vehicle offenses reduced in streets with dimming while theft from vehicles at all times of the day increased, thus suggesting temporal displacement. These findings suggest that the absence of street lighting may prevent theft from vehicles, but there is a danger of offenses being temporally or spatially displaced.

SpringerLink

Boss: Why is your work only 80% complete?

Me: Oh, yes! Thereโ€™s a very good explanation for that.

In my last performance review, you noted that I was exceeding all expectations, but that you were only giving me a 4 out of 5 because you โ€œnever give 5sโ€ because โ€œthereโ€™s always room for improvement.โ€

As a result, Iโ€™ve taken the initiative to deliver at 4/5 capacity to ensure Iโ€™m performing according to your expectations.

As weโ€™ve already established, Iโ€™m easily capable of performing at and above 100%, so please let me know once youโ€™ve adjusted my performance rating to a 5 and I will adjust my performance accordingly.

Be sure to read this article by Fabio Falchi and collaborators recently out in Nature Astronomy: https://www.nature.com/articles/s41550-022-01864-z

#LightPollution #MegaConstellations

A call for scientists to halt the spoiling of the night sky with artificial light and satellites | Nature Astronomy

Unfettered access to dark night skies is rapidly diminishing, due to light pollution and satellite constellation tracks. Scientists should do more to stand up to โ€˜big lightโ€™ and โ€˜big spaceโ€™ and preserve this natural resource.