It said as a result, 14 million more people worldwide now live in coastal communities with a one-in- 20 annual chance of flooding with global greenhouse gas emissions (SSP2-4.5 projected by the end of the century to expand this one-in-20 floodplain to areas currently populated by nearly 73 million people. New hyperlocal data released Tuesday by Human Climate Horizons, a collaboration between the United Nations Development Programme (UNDP) and the Climate Impact Lab (CIL), notes that the extent of coastal flooding has increased over the past 20 years as a result of sea level rise. “Without shoreline defenses, under a worst-case warming scenario by the end of the century, five per cent or more of the following cities are projected to fall permanently below sea level, namely, Guayaquil, Ecuador, Barranquilla, Colombia, Santos, Brazil, Rio de Janeiro, Brazil, Kingston, Jamaica, Cotonou, Benin, Kolkata, India, Perth, Australia, Newcastle, Australia and Sydney, Australia,” said the report. A new report is warning that several Caribbean countries including Jamaica without shoreline defences could permanently lose five per cent or more of their cities to sea level rises by the end of the century.
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