Adds @mckie2023 and @kyba2023

1 files changed, 25 insertions, 0 deletions

diff --git a/environment.bib b/environment.bib
index 7bdcae5..ac6d3b6 100644
--- a/environment.bib
+++ b/environment.bib
@@ -60,3 +60,28 @@
   volume    = "",
   url       = "",
 }
+
+% Las estrellas serían invisibles en 20 años por causa de la contaminación lumínica
+% https://actualidad-rt.com/actualidad/468660-estrellas-serian-invisibles-20-anos
+@misc{mckie2023,
+  title     = "Stars could be invisible within 20 years as light pollution brightens night skies",
+  author    = "Robin McKie",
+  year      = "2023",
+  month     = "05",
+  url       = "https://www.theguardian.com/science/2023/may/27/light-pollution-threatens-to-make-stars-invisible-within-20-years",
+  note      = "Acessado em 09/04/2024",
+}
+
+@article{kyba2023,
+  title    = {Citizen scientists report global rapid reductions in the visibility of stars from 2011 to 2022},
+  author   = {Christopher C. M. Kyba and Yiğit Öner Altıntaş and Constance E. Walker and Mark Newhouse},
+  year     = {2023},
+  journal  = {Science},
+  volume   = {379},
+  number   = {6629},
+  pages    = {265-268},
+  doi      = {10.1126/science.abq7781},
+  url      = {https://www.science.org/doi/abs/10.1126/science.abq7781},
+  eprint   = {https://www.science.org/doi/pdf/10.1126/science.abq7781},
+  abstract = {The artificial glow of the night sky is a form of light pollution; its global change over time is not well known. Developments in lighting technology complicate any measurement because of changes in lighting practice and emission spectra. We investigated the change in global sky brightness from 2011 to 2022 using 51,351 citizen scientist observations of naked-eye stellar visibility. The number of visible stars decreased by an amount that can be explained by an increase in sky brightness of 7 to 10\% per year in the human visible band. This increase is faster than emissions changes indicated by satellite observations. We ascribe this difference to spectral changes in light emission and to the average angle of light emissions. Artificial lighting that escapes into the sky causes it to glow, preventing humans and animals from seeing the stars. Satellites can measure the light emitted upward, but they are not sensitive to all wavelengths produced by LED lighting or to light emitted horizontally. Kyba et al. used data from citizen scientists to measure how light pollution is affecting human views of the stars worldwide (see the Perspective by Falchi and Bará). Participants were shown maps of the sky at different levels of light pollution and asked which most closely matched their view. Trends in the data showed that the average night sky got brighter by 9.6\% per year from 2011 to 2022, which is equivalent to doubling the sky brightness every 8 years. —KTS Observations of the night sky by citizen scientists show that it is rapidly getting brighter due to light pollution.},
+}