Citations for light pollution

<https://en.wikipedia.org/wiki/Light_pollution#:~:text=Light%20pollution%20is%20the%20presence,during%20the%20day%20or%20night.>

<https://www.nationalgeographic.com/animals/article/stars-milky-way-navigation-dung-beetles#:~:text=A%20 small%20but%20 diverse%20group,search%20for%20food%20and%20mates.&text=Humans%20have%20been%20 navigating%20 by,night%20sky%20to%20get%20around.>

<https://www.nationalgeographic.org/article/light-pollution/#:~:text=Light%20pollution%2C%20or%20artificial%20light,stars%20in%20the%20night%20sky.>

<https://www.globeatnight.org/light-pollution.php#:~:text=Light%20 pollution%20is%20 excessive%2C%20 misdirected,health%20effects%20 and%20 wastes%20energy.>

<https://www.google.com/search?q=what+is+light+pollution+doing%3F&rlz=1CAJIKU_enCA1004&oq=what+is+light+pollution+doing%3 F&aqs=chrome..69i57j0i22i30j0i390l5.8614j0j7&sourceid=chrome&ie=UTF-8&safe=active&ssui=on>

Citations for Chlorofluorocarbons

<https://en.wikipedia.org/wiki/Chlorofluorocarbon - Wikipedia - Chlorofluorocarbon>

<https://gml.noaa.gov/outreach/lesson_plans - ESRl Global Monitoring Laboratory - National Oceanic and Atmospheric Administration (NOAA)  Module #22 : Sources of Chlorofluorocarbons >

<https://en.wikipedia.org/wiki/Ozone_layer#:~:text=The%20ozone%20layer%20or%20ozone,other%20gases%20in%20the%20stratosphere. Wikipedia - Ozone Layer>

<https://en.wikipedia.org/wiki/Ozone_depletion -Wikipedia - Ozone depletion>

<https://www.youtube.com/watch?v=CaLOiGEDPJQ YouTube - Vox - Why don't you hear about the ozone layer anymore>

<https://www.vox.com/future-perfect/22686105/future-of-life-ozone-hole-environmental-crisis -Vox - When the world actually solved an environmental crisis>

<http://www.dynamicscience.com.au/tester/solutions1/chemistry/greenhouse/cfc.htm - Dynamic Science - chemistry - greenhouse-chlorofluorocarbons and the ozone layer>

<https://en.wikipedia.org/wiki/Montreal_Protocol - Dynamic Science - chemistry - greenhouse-chlorofluorocarbons and the ozone layer>

<https://www.soest.hawaii.edu/GG/ASK/ozonehole.html - SOEST Hawaii - Polar Ozone hole>

<https://www.awe.gov.au/environment/protection/ozone/montreal-protocol/graphs - The effect of CFCs on the ozone layer - Montreal Protocol on Substances that Deplete the Ozone Layer - Graphs - Agriculture.gov.au>

<https://kaiserscience.wordpress.com/biology-the-living-environment/human-impact-on-ecosystems/ozone-layer-and-cfcs/ - Kaiser Science- Ozone and CFCS>

Citations for Carbon Dioxide

<https://zfacts.com/zfacts.com/p/194.html>

<https://www.exploratorium.edu/climate/atmosphere#Introduction:Atmosphere>

<Impact of future nitrous oxide and carbon dioxide emissions …>

<https://www.esa.int/ESA_Multimedia/Images/2013/08/Carbon_dioxide_on_the_rise>

<https://www.nrdc.org/stories/air-pollution-everything-you-need-know>

<Weather | National Oceanic and Atmospheric Administration>

<https://www.calstatela.edu/sites/default/files/dept/chem/07summer/158/25-words-co2.pdf>

<https://www.treehugger.com/co-why-is-carbon-dioxide-bad-4864246>

<Carbon dioxide levels are at a record high. Here's what you need to know>

<How to Reduce Carbon Emissions: 6 Ways to ... - MasterClass>

<https://en.wikipedia.org/wiki/Paris_Agreement>

<https://www.quora.com/How-have-levels-of-carbon-dioxide-in-the-atmosphere-changed-in-the-past-100-years>

<Effects of Changing the Carbon Cycle - NASA Earth Observatory>