{"id":571,"date":"2022-03-02T15:26:31","date_gmt":"2022-03-02T15:26:31","guid":{"rendered":"https:\/\/scienceandnerds.com\/2022\/03\/02\/seawalls-alone-wont-save-coastal-cities-major-un-report-says\/"},"modified":"2022-03-02T15:26:31","modified_gmt":"2022-03-02T15:26:31","slug":"seawalls-alone-wont-save-coastal-cities-major-un-report-says","status":"publish","type":"post","link":"https:\/\/scienceandnerds.com\/2022\/03\/02\/seawalls-alone-wont-save-coastal-cities-major-un-report-says\/","title":{"rendered":"Seawalls alone won\u2019t save coastal cities, major UN report says"},"content":{"rendered":"<p>Source: <a href=\"https:\/\/www.theverge.com\/2022\/2\/28\/22953552\/sea-walls-coastal-cities-climate-change-adaptation-united-nations-report\">https:\/\/www.theverge.com\/2022\/2\/28\/22953552\/sea-walls-coastal-cities-climate-change-adaptation-united-nations-report<\/a><br \/>\n<code><br \/><\/br><\/code><\/p>\n<div readability=\"106.49061242736\">\n<p id=\"CwrlkU\">Relying solely on seawalls and other engineering fixes won\u2019t be enough to keep communities safe from rising sea levels or other consequences of climate change, a major new United Nations <a href=\"https:\/\/www.ipcc.ch\/report\/ar6\/wg2\/\">report<\/a> warns. Seawalls might be able to temporarily fend off rising tides and storm surges, but the report\u2019s authors say more \u201ctransformative changes in our behaviour and infrastructure\u201d are needed as the climate crisis worsens.<\/p>\n<p id=\"qxIqQg\">Greener cities and healthy ecosystems are just as important as built infrastructure for keeping people safe, the report emphasized. And urban planners might need to give up developing some of the most vulnerable coastal areas, or risk building in places that\u2019ll be inundated with water in the future. <\/p>\n<div class=\"c-float-right\">\n<aside id=\"t8dDVN\"><q>Greener cities and healthy ecosystems are just as important as built infrastructure <\/q><\/aside>\n<\/div>\n<p id=\"IPK5zP\">The report, authored by hundreds of experts from 67 countries, also synthesizes what the vast body of research tells us about how the climate crisis affects society as we know it \u2014 and what humans will likely have to do to adapt. Deadly heat stress could affect up to 76 percent of humanity by the end of the century, the report says. Up to 3 billion people around the world (nearly 40 percent of the current global population) could face chronic water scarcity if world leaders fail to meet the goals of the Paris climate accord. <\/p>\n<p id=\"RxuPbB\">But in many places, too much seawater is the problem. More than a billion people living in low-lying coastal areas around the world will be exposed to climate-related risks like frequent flooding or even permanent inundation by the middle of the century \u2014 which could force many to move to higher ground. <\/p>\n<p id=\"8ONWMT\">The report finds that communities around the world haven\u2019t done nearly enough to prepare for climate change, so they\u2019ll have to take action urgently to avoid unnecessary pain. Sometimes, building up physical defenses like seawalls are needed to protect a community, the report acknowledges. But seawalls are not a one size fits all solution, and they\u2019re not always the best choice.<\/p>\n<p id=\"uLNSWx\">That makes them an excellent example of what report authors call \u201cmaladaptation\u201d \u2014 strategies that are supposed to help people cope with dramatic changes, but wind up having unintended negative consequences. Seawalls might do a good job at protecting a small area of a coastline, but harm neighboring coral reefs, which serve as <a href=\"https:\/\/oceanservice.noaa.gov\/facts\/coral_protect.html\">natural barriers<\/a> that protect shorelines from swells during big storms. Seawalls can even escalate risks in the long run by encouraging more residents to settle in a place that\u2019s more perilous than they think.<\/p>\n<p id=\"Ouxu1j\">There are other solutions that are often overlooked. In a lot of cases,<strong> <\/strong>\u201cReestablishing wetlands is cheaper and more effective and more resilient to coming climate change than are hard barriers,\u201d report co-author Camille Parmesan said in a press call. Wetlands are like <a href=\"https:\/\/www.epa.gov\/wetlands\/why-are-wetlands-important#:~:text=wetlands%20were%20destroyed.-,Flood%20Protection,more%20slowly%20over%20the%20floodplain.\">natural sponges<\/a> that can make flooding less severe and prevent erosion. But these kinds of nature-based solutions, across the globe, have received less funding than concrete infrastructure projects, the report notes.<\/p>\n<div class=\"c-float-left\">\n<aside id=\"BzJN0v\"><q>\u201cWhat this looks like is that people are going to not be able to adapt\u201d<\/q><\/aside>\n<\/div>\n<p id=\"3oM1Lt\">Without cutting down planet-heating pollution, some places are already expected to be beyond saving. \u201cWhat this looks like is that people are going to not be able to adapt,\u201d report co-author Adelle Thomas said in the press call. \u201cFor coastal communities, things like sea walls &#8230; putting in sand dunes or relying on ecosystem-based adaptation like restoring coral reefs or wetlands will no longer be financially feasible, or may no longer be technically feasible.\u201d <\/p>\n<p id=\"9xeNDX\">Some <a href=\"https:\/\/isledejeancharles.la.gov\/\">coastal communities<\/a> have picked up and left or are preparing for their homes to become a real-life Atlantis. And while the report is clear that climate change affects people and infrastructure everywhere, some places struggle more than others. \u201cPeople and ecosystems least able to cope are being hardest hit,\u201d a press release for the report says. And \u201cFinance has tended to favour the wealthiest rather than the poorest,\u201d an accompanying fact sheet says.<\/p>\n<p id=\"banTHH\">The newly released report is a second in a series by the United Nations Intergovernmental Panel on Climate Change. The first piece came out last year, which detailed how <a href=\"https:\/\/www.theverge.com\/2021\/8\/9\/22613531\/climate-change-united-nations-report-extreme-weather-ipcc\">climate change is supercharging extreme weather<\/a> and causing other devastating changes to the planet. The third in the series is expected next month, and will focus on solutions for slowing down global warming.  <\/p>\n<\/div>\n<p><code><br \/><\/br><\/code><\/p>\n<p>Source: <a href=\"https:\/\/www.theverge.com\/2022\/2\/28\/22953552\/sea-walls-coastal-cities-climate-change-adaptation-united-nations-report\">https:\/\/www.theverge.com\/2022\/2\/28\/22953552\/sea-walls-coastal-cities-climate-change-adaptation-united-nations-report<\/a><\/p>\n","protected":false},"excerpt":{"rendered":"<p>Source: Relying solely on seawalls and other engineering fixes won\u2019t be enough to keep communities safe from rising sea levels or other consequences of climate change, a major new United Nations report warns. Seawalls might be able to temporarily fend off rising tides and storm surges, but the report\u2019s authors say more \u201ctransformative changes in [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"nf_dc_page":"","om_disable_all_campaigns":false,"pagelayer_contact_templates":[],"_pagelayer_content":"","_jetpack_memberships_contains_paid_content":false,"footnotes":""},"categories":[44,40,26],"tags":[45],"class_list":["post-571","post","type-post","status-publish","format-standard","hentry","category-climate-change","category-environment","category-science","tag-climate-change"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v23.7 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>Seawalls alone won\u2019t save coastal cities, major UN report says - Science and Nerds<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/scienceandnerds.com\/2022\/03\/02\/seawalls-alone-wont-save-coastal-cities-major-un-report-says\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Seawalls alone won\u2019t save coastal cities, major UN report says - Science and Nerds\" \/>\n<meta property=\"og:description\" content=\"Source: Relying solely on seawalls and other engineering fixes won\u2019t be enough to keep communities safe from rising sea levels or other consequences of climate change, a major new United Nations report warns. 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