{"id":115403,"date":"2023-07-10T09:10:10","date_gmt":"2023-07-10T06:10:10","guid":{"rendered":"https:\/\/tietopankki.crnet.fi\/fi\/news\/could-painting-rooftops-white-help-lower-temperatures-scientists-want-barcelona-to-try-it-out\/"},"modified":"2023-07-10T09:10:10","modified_gmt":"2023-07-10T06:10:10","slug":"could-painting-rooftops-white-help-lower-temperatures-scientists-want-barcelona-to-try-it-out","status":"publish","type":"post","link":"https:\/\/tietopankki.crnet.fi\/en\/news\/could-painting-rooftops-white-help-lower-temperatures-scientists-want-barcelona-to-try-it-out\/","title":{"rendered":"Could painting rooftops white help lower temperatures? Scientists want Barcelona to try it out"},"content":{"rendered":"<div class=\"mp_wrapper\">\n  <div class=\"mepr-unauthorized-message\">\n    <p>You are unauthorized to view this page.<\/p>\n  <\/div>\n  <div class=\"mepr-login-form-wrap\">\n            \n<div class=\"mp_wrapper mp_login_form\">\n                  <!-- mp-login-form-start -->     <form name=\"mepr_loginform\" id=\"mepr_loginform\" class=\"mepr-form\" action=\"https:\/\/tietopankki.crnet.fi\/en\/login-2\/\" method=\"post\" data-trp-original-action=\"https:\/\/tietopankki.crnet.fi\/en\/login-2\/\">\n            <div class=\"mp-form-row mepr_username\">\n        <div class=\"mp-form-label\">\n                              <label for=\"user_login\">Username<\/label>\n        <\/div>\n        <input type=\"text\" name=\"log\" id=\"user_login\" value=\"\" \/>\n      <\/div>\n      <div class=\"mp-form-row mepr_password\">\n        <div class=\"mp-form-label\">\n          <label for=\"user_pass\">Password<\/label>\n          <div class=\"mp-hide-pw\">\n            <input type=\"password\" name=\"pwd\" id=\"user_pass\" value=\"\" \/>\n            <button type=\"button\" class=\"button mp-hide-pw hide-if-no-js\" data-toggle=\"0\" aria-label=\"Show password\">\n              <span class=\"dashicons dashicons-visibility\" aria-hidden=\"true\"><\/span>\n            <\/button>\n          <\/div>\n        <\/div>\n      <\/div>\n            <div>\n        <label><input name=\"rememberme\" type=\"checkbox\" id=\"rememberme\" value=\"forever\" \/> Remember Me<\/label>\n      <\/div>\n      <div class=\"mp-spacer\">&nbsp;<\/div>\n      <div class=\"submit\">\n        <input type=\"submit\" name=\"wp-submit\" id=\"wp-submit\" class=\"button-primary mepr-share-button\" value=\"Log In\" \/>\n        <input type=\"hidden\" name=\"redirect_to\" value=\"\/en\/wp-json\/wp\/v2\/posts\/115403\" \/>\n        <input type=\"hidden\" name=\"mepr_process_login_form\" value=\"true\" \/>\n        <input type=\"hidden\" name=\"mepr_is_login_page\" value=\"false\" \/>\n      <\/div>\n    <input type=\"hidden\" name=\"trp-form-language\" value=\"en\"\/><\/form>\n    <div class=\"mp-spacer\">&nbsp;<\/div>\n    <div class=\"mepr-login-actions\">\n        <a\n          href=\"https:\/\/tietopankki.crnet.fi\/en\/login-2\/?action=forgot_password\"\n          title=\"Click here to reset your password\"\n        >\n          Forgot Password        <\/a>\n    <\/div>\n\n      \n    <!-- mp-login-form-end --> \n  <\/div>\n      <\/div>\n<\/div>","protected":false},"excerpt":{"rendered":"<div class=\"smart_content_wrapper\">\nScientists have an \u2018excellent\u2019 idea for combating the capital of Catalonia&#8217;s heat island effect, as heatwaves intensify. The terracotta balconies of Barcelona have, for a long time, been synonymous with the city of love. But the palette of its skyline could be changing for climate reasons. A proposed makeover would see the rooftops of the Catalan capital painted white in an effort to reduce the devastating impact of heatwaves.<\/p>\n<p>Occurring more and more frequently, the city\u2019s heat island effect has increased temperatures by up to eight degrees Celsius in the city centre. And as the climate crisis advances, scientists from the Autonomous University of Barcelona (UAB) have presented a dramatic proposal which could change the face of the city for good.<\/p>\n<p>According to recent figures, Europe is warming faster than the global average, with annual temperatures increasing between 1.7 and 1.9 degrees Celsius in urban areas. Barcelona is no exception, with 2020 seeing the city&#8217;s warmest year for over two centuries &#8211; registering an average temperature of 16.8 degrees Celsius. In response to this problem, a group of climate change researchers are pioneering a project to paint the city&#8217;s rooftops white &#8211; claiming it could reduce temperatures by up to 4.7 degrees during heatwaves. &#8220;Cities with urban heat islands could have their rooftops painted white,&#8221; says Sergi Ventura, a meteorologist from UAB. &#8220;In our study, we have detected an average reduction in temperature of 0.8 degrees during heatwaves. And peaks of up to four degrees lower at certain locations and during certain hours of the day.&#8221;<\/p>\n<p>The research shows that pre-existing building materials in Barcelona retain daytime solar radiation, contributing to the accumulation of heat throughout the city. Instead, \u201ccold rooftops\u201d could be created by painting top surfaces white. This would increase the albedo &#8211; the percentage of sunlight reflected by the surface without being absorbed by the building. &#8220;We are collaborating with public entities such as [Barcelona&#8217;s] Urban Master Plan,\u201d continues Ventura. \u201cThey are in favour of painting roofs white. But so far nothing is being done. This is a &#8216;low-cost&#8217; strategy. And according to our predictions, in a city like Barcelona it would work even better than increasing green spaces.\u201d<\/p>\n<p>Source: <a rel=\"noopener\" href=\"https:\/\/www.euronews.com\/green\/2023\/07\/08\/painting-barcelona-s-rooftops-could-lower-temperatures-by-up-to-five-degrees-say-experts\">Euronews<\/a> <\/div>\n<p>The post <a rel=\"noopener\" href=\"https:\/\/vastuullisuusuutiset.fi\/fi\/vaufien\/could-painting-rooftops-white-help-lower-temperatures-scientists-want-barcelona-to-try-it-out\/\">Could painting rooftops white help lower temperatures? Scientists want Barcelona to try it out<\/a> appeared first on <a rel=\"noopener\" href=\"https:\/\/vastuullisuusuutiset.fi\/fi\">Vastuullisuusuutiset.fi<\/a>.<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_jetpack_memberships_contains_paid_content":false,"footnotes":""},"categories":[22],"tags":[4450,10670,10449,606,607,608,10671],"class_list":["post-115403","post","type-post","status-publish","format-standard","hentry","category-news","tag-barcelona","tag-paiting","tag-rooftop","tag-vau_viikkokatsaus","tag-vauen","tag-vaufien","tag-white"],"jetpack_featured_media_url":"","jetpack_sharing_enabled":true,"_links":{"self":[{"href":"https:\/\/tietopankki.crnet.fi\/en\/wp-json\/wp\/v2\/posts\/115403","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/tietopankki.crnet.fi\/en\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/tietopankki.crnet.fi\/en\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/tietopankki.crnet.fi\/en\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/tietopankki.crnet.fi\/en\/wp-json\/wp\/v2\/comments?post=115403"}],"version-history":[{"count":0,"href":"https:\/\/tietopankki.crnet.fi\/en\/wp-json\/wp\/v2\/posts\/115403\/revisions"}],"wp:attachment":[{"href":"https:\/\/tietopankki.crnet.fi\/en\/wp-json\/wp\/v2\/media?parent=115403"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/tietopankki.crnet.fi\/en\/wp-json\/wp\/v2\/categories?post=115403"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/tietopankki.crnet.fi\/en\/wp-json\/wp\/v2\/tags?post=115403"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}