In Vietnam, annual ocean floods are projected to particularly affect the densely populated Mekong Delta and the northern coast around Vietnam’s capital, Hanoi, including the port city of Haiphong (explore map at coastal.climatecentral.org). Kulp, S. A & Strauss, B.H. Experts say yes, Report: Flooded Future: Global vulnerability to sea level rise worse than previously understood, Extreme Heat: When Outdoor Sports Become Risky, Climate Change is Threatening Air Quality across the Country, Ocean at the Door: New Homes and the Rising Sea. In low-elevation coastal areas in the United States with population densities over 50,000 people per square mile, such as parts of Boston, Miami, and New York City, SRTM overestimates elevation by 15.5 feet on average. Please consider supporting our nonprofit efforts. Sea level is on the rise. As a result, SRTM data generally overestimate elevation, particularly in densely forested and built-up areas. Source: World Meteorological Organization / Flickr, New elevation data show that by midcentury frequent coastal flooding will rise higher than areas currently home to hundreds of millions of people, As a result of heat-trapping pollution from human activities, rising sea levels could within three decades push chronic floods higher than land currently home to 300 million people, By 2100, areas now home to 200 million people could fall permanently below the high tide line, The new figures are the result of an improved global elevation dataset produced by Climate Central using machine learning, and revealing that coastal elevations are significantly lower than previously understood across wide areas, The threat is concentrated in coastal Asia and could have profound economic and political consequences within the lifetimes of people alive today, Findings are documented in a new peer-reviewed paper in the journal Nature Communications. Source: Pinterest For example, climate activists often claim the island nation of Tuvalu is sinking under rising seas and spawning climate refugees. To the many organizations that have financially supported Climate Central and its sea level program, including The Kresge Foundation and The Schmidt Family Foundation. To the many organizations that have financially supported Climate Central and its sea level program, including The Kresge Foundation and The Schmidt Family Foundation. An independent organization of leading scientists and journalists researching and reporting the facts about our changing climate and its impact on the public. Chart 1. Scientific Reports 7, 3880 (2017). Global and Planetary Change (2012). To the many organizations that have financially supported Climate Central and its sea level program, including The Kresge Foundation and The Schmidt Family Foundation. Rising seas dramatically increase the odds of damaging floods from storm surges. The recent migration that has figured so prominently in recent European elections pales in comparison to the potential displacements of the coming decades, when many millions of people could flee rising seas around the world—both across borders, and within them. Shanghai, which is the country’s most populous city, is projected to be particularly vulnerable to ocean flooding in the absence of coastal defenses (box 4). Moreover, such features are costly and require significant maintenance on an ongoing basis in order to be effective; in the U.S., for example, the American Society of Civil Engineers estimated in 2013 that only 8% of existing levees it had monitored were in “acceptable” condition. Scientific Reports, 7(1), 3880. http://doi.org/10.1038/s41598-017-04134-5 4. Members of the Climate Central staff and board are among the most respected leaders in climate science. 6) Local annual floods. Melting ice sheets will cause higher sea-level rise in the state due to how the Earth rotates and gravitational pull on the waters 2014) to find regions that could permanently fall under the new high tide line in the coming decades. http://data.stats.gov.cn/english/ The Climate Central sea level rise group conceived and maintains this tool. Finally, take Bangladesh and Vietnam, where coastal land currently home to 42 million and 31 million people, respectively, could be threatened with saltwater flooding at least once per year at midcentury. This process was repeated for a number of different years and sea level rise model sensitivities, and under low, moderate, and high emissions pathways for heat-trapping pollution (Representative Concentration Pathways 2.6, 4.5, and 8.5), in order to achieve a comprehensive assessment of global coastal vulnerability. Sea Level Rise: New York Projections and Impacts Summary of impacts and projections, with link to December 2010 special task force report to the NY legislature on sea level rise. At midcentury, sea-level rise projections under moderate cuts are similar to those under unchecked emissions (known as RCP 8.5); by the end of the century, however, projections diverge much more. Climate Central just completed a novel analysis of worldwide exposure to sea level rise and coastal flooding. Nature Communications, October 2019, DOI: 10.1038/s41467-019-12808-z As a result, projections based on CoastalDEM may underestimate the extent of population exposure to future flooding. A global reanalysis of storm surges and extreme sea levels. In small islands states, as elsewhere, land could become uninhabitable well before it disappears. All three strategies are being pursued to some extent in Atlantic City. Global and Planetary Change 146, 179–189 (2016). Human-caused climate change is creating more coastal flood days in the U.S. New analysis looks at the human-caused influence on the number of coastal flood days for various locations across the U.S. As the climate warms, rising sea levels will mean more damage from hurricane storm surge. Surging Seas collects these sea level resources and more. IEEE Transactions on Geoscience and Remote Sensing 52, 4823–4831 (2014). 2014, median climate sensitivity. Remote Sensing of Environment 206, 231–239 (2018). 21St and 22nd century sea-level projections representing the deeply uncertain contribution of the 20th.! Near-Term increases in projected flood exposure based on CoastalDEM may underestimate the extent to which ocean floods can over... Is true of Guangdong Province, China home to some extent in Atlantic city corrected at! And weather links, sea level is on the public vulnerability at.! Central sea level rise impacts on major Cities from global warming how people! 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