{"id":9835,"date":"2021-04-04T23:15:11","date_gmt":"2021-04-04T23:15:11","guid":{"rendered":"https:\/\/eschooltoday.com\/learn\/?page_id=9835"},"modified":"2021-04-05T00:45:19","modified_gmt":"2021-04-05T00:45:19","slug":"light-pollution-factsheet","status":"publish","type":"page","link":"https:\/\/eschooltoday.com\/learn\/light-pollution-factsheet\/","title":{"rendered":"Light pollution factsheet"},"content":{"rendered":"\t\t<div data-elementor-type=\"wp-page\" data-elementor-id=\"9835\" class=\"elementor elementor-9835\">\n\t\t\t\t\t\t<section class=\"elementor-section elementor-top-section elementor-element elementor-element-c189e04 elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"c189e04\" data-element_type=\"section\" data-e-type=\"section\">\n\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-default\">\n\t\t\t\t\t<div class=\"elementor-column elementor-col-100 elementor-top-column elementor-element elementor-element-2f4cce0\" data-id=\"2f4cce0\" data-element_type=\"column\" data-e-type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<section class=\"elementor-section elementor-inner-section elementor-element elementor-element-ddbb926 elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"ddbb926\" data-element_type=\"section\" data-e-type=\"section\">\n\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-default\">\n\t\t\t\t\t<div class=\"elementor-column elementor-col-33 elementor-inner-column elementor-element elementor-element-3f24f39\" data-id=\"3f24f39\" data-element_type=\"column\" data-e-type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-dcb7bc7 elementor-align-start elementor-icon-list--layout-traditional elementor-list-item-link-full_width elementor-widget elementor-widget-icon-list\" data-id=\"dcb7bc7\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"icon-list.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t<ul class=\"elementor-icon-list-items\">\n\t\t\t\t\t\t\t<li class=\"elementor-icon-list-item\">\n\t\t\t\t\t\t\t\t\t\t<span class=\"elementor-icon-list-text\">Light Pollution<\/span>\n\t\t\t\t\t\t\t\t\t<\/li>\n\t\t\t\t\t\t<\/ul>\n\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-3e2df5b elementor-widget elementor-widget-jet-nav-menu\" data-id=\"3e2df5b\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"jet-nav-menu.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<nav class=\"jet-nav-wrap m-layout-mobile\"><div class=\"menu-light-pollution-container\"><div class=\"jet-nav m-layout-mobile jet-nav--vertical jet-nav--vertical-sub-left-side\"><div class=\"menu-item menu-item-type-post_type menu-item-object-page jet-nav__item-9847 jet-nav__item\"><a href=\"https:\/\/eschooltoday.com\/learn\/light-pollution\/\" class=\"menu-item-link menu-item-link-depth-0 menu-item-link-top\"><span class=\"jet-nav-link-text\">Light pollution<\/span><\/a><\/div>\n<div class=\"menu-item menu-item-type-post_type menu-item-object-page jet-nav__item-9857 jet-nav__item\"><a href=\"https:\/\/eschooltoday.com\/learn\/what-is-light-pollution\/\" class=\"menu-item-link menu-item-link-depth-0 menu-item-link-top\"><span class=\"jet-nav-link-text\">What is light pollution?<\/span><\/a><\/div>\n<div class=\"menu-item menu-item-type-post_type menu-item-object-page jet-nav__item-9851 jet-nav__item\"><a href=\"https:\/\/eschooltoday.com\/learn\/sources-of-light-pollution\/\" class=\"menu-item-link menu-item-link-depth-0 menu-item-link-top\"><span class=\"jet-nav-link-text\">Sources of light pollution<\/span><\/a><\/div>\n<div class=\"menu-item menu-item-type-post_type menu-item-object-page jet-nav__item-9848 jet-nav__item\"><a href=\"https:\/\/eschooltoday.com\/learn\/types-of-light-pollution\/\" class=\"menu-item-link menu-item-link-depth-0 menu-item-link-top\"><span class=\"jet-nav-link-text\">Types of light pollution<\/span><\/a><\/div>\n<div class=\"menu-item menu-item-type-post_type menu-item-object-page jet-nav__item-9850 jet-nav__item\"><a href=\"https:\/\/eschooltoday.com\/learn\/effects-of-light-pollution\/\" class=\"menu-item-link menu-item-link-depth-0 menu-item-link-top\"><span class=\"jet-nav-link-text\">Effects of light pollution<\/span><\/a><\/div>\n<div class=\"menu-item menu-item-type-post_type menu-item-object-page jet-nav__item-9849 jet-nav__item\"><a href=\"https:\/\/eschooltoday.com\/learn\/light-pollution-prevention\/\" class=\"menu-item-link menu-item-link-depth-0 menu-item-link-top\"><span class=\"jet-nav-link-text\">Light pollution prevention<\/span><\/a><\/div>\n<div class=\"menu-item menu-item-type-post_type menu-item-object-page jet-nav__item-9852 jet-nav__item\"><a href=\"https:\/\/eschooltoday.com\/learn\/light-pollution-and-hatchlings\/\" class=\"menu-item-link menu-item-link-depth-0 menu-item-link-top\"><span class=\"jet-nav-link-text\">Light pollution and hatchlings<\/span><\/a><\/div>\n<div class=\"menu-item menu-item-type-post_type menu-item-object-page jet-nav__item-9853 jet-nav__item\"><a href=\"https:\/\/eschooltoday.com\/learn\/light-pollution-factsheet\/\" class=\"menu-item-link menu-item-link-depth-0 menu-item-link-top\"><span class=\"jet-nav-link-text\">Light pollution factsheet<\/span><\/a><\/div>\n<\/div><\/div><\/nav>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-fd37c03 elementor-widget-divider--view-line elementor-widget elementor-widget-divider\" data-id=\"fd37c03\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"divider.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t<div class=\"elementor-divider\">\n\t\t\t<span class=\"elementor-divider-separator\">\n\t\t\t\t\t\t<\/span>\n\t\t<\/div>\n\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-9f9252b elementor-widget elementor-widget-html\" data-id=\"9f9252b\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"html.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<script async src=\"https:\/\/pagead2.googlesyndication.com\/pagead\/js\/adsbygoogle.js\"><\/script>\n<!-- Tall-Responsive -->\n<ins class=\"adsbygoogle\"\n     style=\"display:block\"\n     data-ad-client=\"ca-pub-4993435605385515\"\n     data-ad-slot=\"6804764118\"\n     data-ad-format=\"auto\"\n     data-full-width-responsive=\"true\"><\/ins>\n<script>\n     (adsbygoogle = window.adsbygoogle || []).push({});\n<\/script>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t<div class=\"elementor-column elementor-col-33 elementor-inner-column elementor-element elementor-element-c5812b4\" data-id=\"c5812b4\" data-element_type=\"column\" data-e-type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-626b4c7 elementor-widget elementor-widget-heading\" data-id=\"626b4c7\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<h2 class=\"elementor-heading-title elementor-size-default\">Important facts of light pollution<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-6f60f99 elementor-widget elementor-widget-text-editor\" data-id=\"6f60f99\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p class=\"p1\">Street lighting has been blamed for up to 50% of the urban sky glow due to 95% of the light directed down toward the pavement being reflected upward at reflectance rates ranging from 6% for asphalt to 25% for concrete (Ref 1). Urban sky glow has been reported to be increasing around 30% annually in some American cities (Ref 5).<\/p><p class=\"p1\"><i>LIGHT POLLUTION ENVIRONMENTAL EFFECTS OF ROADWAY LIGHTING, Carl Shaflik, BASc, PEng<\/i><\/p><p class=\"p1\">In March 2013, a study found that Hong Kong is one of the worst offenders in the world for light pollution. Parts of the territory have been registered as 1,200 times brighter than a normal dark sky. Researchers say light pollution can affect health.<\/p><p class=\"p1\"><i>BBC News, Reported by Jennifer Pak.<\/i><\/p><p class=\"p1\">These days, there are light-dimming technologies other than low-pressure sodium that are very safe. Depending on the method employed, dimming can also reduce energy demand by 40% and maintenance costs by 50%.68 Although centralised management systems can be more expensive to install, the payback time can be as little as 4-5 years.<\/p><p class=\"p1\"><i>Source: Artificial Light in the Environment Report, UK, Page 26 ISBN: 9780108508547)<\/i><\/p><p class=\"p1\">Our understanding of the adverse effects of light pollution is vague and based mostly on purely observational case studies. Nonetheless, there is clear evidence that artificial lighting can alter physiology, including hormonal balance, as well as behavior, orientation, organism fitness, food web interactions, and biotope connectivity. The artificial disturbance of the natural day\/night cycle may, as a result, have serious psycho-physiological and even medical consequences for humans, along with ecological and evolutionary implications for animals, plants, and even entire terrestrial, freshwater, and marine ecosystems<\/p><p class=\"p1\">(Rich and Longcore 2006, Navara and Nelson 2007)<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-29ca264 elementor-widget elementor-widget-text-editor\" data-id=\"29ca264\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p class=\"p1\">OUR READING SOURCES FOR THIS LESSON INCLUDED:<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-a89501d elementor-widget elementor-widget-text-editor\" data-id=\"a89501d\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p>http:\/\/www.ecologyandsociety.org\/vol15\/iss4\/art13\/<br \/>Artificial Light in the Environment. ISBN: 9780108508547 https:\/\/assets.publishing.service.gov.uk\/government\/uploads\/system\/uploads\/attachment_data\/file\/228832\/9780108508547.pdf.pdf<br \/>LIGHT POLLUTION, ENVIRONMENTAL EFFECTS OF ROADWAY LIGHTING, Carl Shaflik, BASc, PEng http:\/\/www.shaflik.com\/documents\/LIGHT%20POLLUTION%20TECHNICAL%20PAPER.pdf<br \/>http:\/\/www.nature.nps.gov\/night\/sources.cfm<br \/>http:\/\/www.lrc.rpi.edu\/programs\/nlpip\/lightinganswers\/lightpollution\/lightTrespass.asp<br \/>Light Trespass and Light Pollution &#8211; Practical Approaches to Dealing with Problems By Ian Lewin, Ph.D., FIES, L.C. https:\/\/www.lightingassociates.org\/i\/u\/2127806\/f\/tech_sheets\/Light_Trespass_and_Light_Pollution.pdf<br \/>http:\/\/www.rasc.ca\/sites\/default\/files\/LightPollution-TheProblemofGlare.pdf<br \/>http:\/\/www.iau.org\/public\/themes\/light_pollution\/<br \/>http:\/\/www.nrdc.org\/thisgreenlife\/1209.asp<br \/>http:\/\/www.globeatnight.org\/light-pollution.php<br \/>http:\/\/www.darksky.org\/<br \/>http:\/\/www.sustainablefairfax.org\/content\/view\/321\/27\/<br \/>http:\/\/www.darkskiesawareness.org\/faq-what-is-lp.php<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t<div class=\"elementor-column elementor-col-33 elementor-inner-column elementor-element elementor-element-2f2feb5\" data-id=\"2f2feb5\" data-element_type=\"column\" data-e-type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-d2f570a elementor-widget elementor-widget-html\" data-id=\"d2f570a\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"html.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<script async src=\"https:\/\/pagead2.googlesyndication.com\/pagead\/js\/adsbygoogle.js\"><\/script>\n<!-- Tall-Responsive -->\n<ins class=\"adsbygoogle\"\n     style=\"display:block\"\n     data-ad-client=\"ca-pub-4993435605385515\"\n     data-ad-slot=\"6804764118\"\n     data-ad-format=\"auto\"\n     data-full-width-responsive=\"true\"><\/ins>\n<script>\n     (adsbygoogle = window.adsbygoogle || []).push({});\n<\/script>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t<section class=\"elementor-section elementor-inner-section elementor-element elementor-element-4e8d156 elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"4e8d156\" data-element_type=\"section\" data-e-type=\"section\">\n\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-default\">\n\t\t\t\t\t<div class=\"elementor-column elementor-col-50 elementor-inner-column elementor-element elementor-element-91cd181\" data-id=\"91cd181\" data-element_type=\"column\" data-e-type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-ca3bbc2 elementor-widget elementor-widget-button\" data-id=\"ca3bbc2\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"button.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<div class=\"elementor-button-wrapper\">\n\t\t\t\t\t<a class=\"elementor-button elementor-button-link elementor-size-md\" href=\"https:\/\/eschooltoday.com\/learn\/light-pollution-and-hatchlings\/\">\n\t\t\t\t\t\t<span class=\"elementor-button-content-wrapper\">\n\t\t\t\t\t\t\t\t\t<span class=\"elementor-button-text\">GO BACK<\/span>\n\t\t\t\t\t<\/span>\n\t\t\t\t\t<\/a>\n\t\t\t\t<\/div>\n\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t<div class=\"elementor-column elementor-col-50 elementor-inner-column elementor-element elementor-element-fa456d4\" data-id=\"fa456d4\" data-element_type=\"column\" data-e-type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap\">\n\t\t\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t<section class=\"elementor-section elementor-top-section elementor-element elementor-element-418b3da elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"418b3da\" data-element_type=\"section\" data-e-type=\"section\" data-settings=\"{&quot;background_background&quot;:&quot;classic&quot;}\">\n\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-default\">\n\t\t\t\t\t<div class=\"elementor-column elementor-col-100 elementor-top-column elementor-element elementor-element-bcbfc60\" data-id=\"bcbfc60\" data-element_type=\"column\" data-e-type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-ba8a2c8 elementor-widget elementor-widget-heading\" data-id=\"ba8a2c8\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<h2 class=\"elementor-heading-title elementor-size-default\">Recommended Pollution Lessons<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-2367884 jet-nav-align-flex-start elementor-widget elementor-widget-jet-nav-menu\" data-id=\"2367884\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"jet-nav-menu.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<nav class=\"jet-nav-wrap m-layout-mobile\"><div class=\"menu-pollution-container\"><div class=\"jet-nav m-layout-mobile jet-nav--horizontal\"><div class=\"menu-item menu-item-type-post_type menu-item-object-page jet-nav__item-6307 jet-nav__item\"><a href=\"https:\/\/eschooltoday.com\/learn\/what-is-water-pollution\/\" class=\"menu-item-link menu-item-link-depth-0 menu-item-link-top\"><span class=\"jet-nav-link-text\">Water Pollution<\/span><\/a><\/div>\n<div class=\"menu-item menu-item-type-post_type menu-item-object-page jet-nav__item-6308 jet-nav__item\"><a href=\"https:\/\/eschooltoday.com\/learn\/what-is-air-pollution\/\" class=\"menu-item-link menu-item-link-depth-0 menu-item-link-top\"><span class=\"jet-nav-link-text\">Air Pollution<\/span><\/a><\/div>\n<div class=\"menu-item menu-item-type-post_type menu-item-object-page jet-nav__item-6309 jet-nav__item\"><a href=\"https:\/\/eschooltoday.com\/learn\/what-is-land-pollution\/\" class=\"menu-item-link menu-item-link-depth-0 menu-item-link-top\"><span class=\"jet-nav-link-text\">Land Pollution<\/span><\/a><\/div>\n<div class=\"menu-item menu-item-type-post_type menu-item-object-page jet-nav__item-6388 jet-nav__item\"><a href=\"https:\/\/eschooltoday.com\/learn\/what-is-noise-pollution\/\" class=\"menu-item-link menu-item-link-depth-0 menu-item-link-top\"><span class=\"jet-nav-link-text\">Noise Pollution<\/span><\/a><\/div>\n<div class=\"menu-item menu-item-type-post_type menu-item-object-page jet-nav__item-9858 jet-nav__item\"><a href=\"https:\/\/eschooltoday.com\/learn\/what-is-light-pollution\/\" class=\"menu-item-link menu-item-link-depth-0 menu-item-link-top\"><span class=\"jet-nav-link-text\">What is light pollution?<\/span><\/a><\/div>\n<div class=\"menu-item menu-item-type-post_type menu-item-object-page jet-nav__item-11155 jet-nav__item\"><a href=\"https:\/\/eschooltoday.com\/learn\/plastic-waste\/\" class=\"menu-item-link menu-item-link-depth-0 menu-item-link-top\"><span class=\"jet-nav-link-text\">Plastic Pollution<\/span><\/a><\/div>\n<\/div><\/div><\/nav>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t<\/div>\n\t\t","protected":false},"excerpt":{"rendered":"<p>Light Pollution Light pollution What is light pollution? Sources of light pollution Types of light pollution Effects of light pollution Light pollution prevention Light pollution and hatchlings Light pollution factsheet Important facts of light pollution Street lighting has been blamed for up to 50% of the urban sky glow due to 95% of the light [&hellip;]<\/p>\n","protected":false},"author":3,"featured_media":0,"parent":0,"menu_order":0,"comment_status":"closed","ping_status":"closed","template":"page-templates\/fullwidth-content.php","meta":{"footnotes":""},"class_list":["post-9835","page","type-page","status-publish","hentry"],"_links":{"self":[{"href":"https:\/\/eschooltoday.com\/learn\/wp-json\/wp\/v2\/pages\/9835","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/eschooltoday.com\/learn\/wp-json\/wp\/v2\/pages"}],"about":[{"href":"https:\/\/eschooltoday.com\/learn\/wp-json\/wp\/v2\/types\/page"}],"author":[{"embeddable":true,"href":"https:\/\/eschooltoday.com\/learn\/wp-json\/wp\/v2\/users\/3"}],"replies":[{"embeddable":true,"href":"https:\/\/eschooltoday.com\/learn\/wp-json\/wp\/v2\/comments?post=9835"}],"version-history":[{"count":20,"href":"https:\/\/eschooltoday.com\/learn\/wp-json\/wp\/v2\/pages\/9835\/revisions"}],"predecessor-version":[{"id":9996,"href":"https:\/\/eschooltoday.com\/learn\/wp-json\/wp\/v2\/pages\/9835\/revisions\/9996"}],"wp:attachment":[{"href":"https:\/\/eschooltoday.com\/learn\/wp-json\/wp\/v2\/media?parent=9835"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}