BARCELONA - After a landslide in 2017 killed 1,141 people and left more than 3,000 homeless in Sierra Leone's capital Freetown, the recovery plan included training residents to plant 21,000 native trees to reduce the risk of future disasters on bare hillsides.
The nature revival project, carried out in the early 2000s, has lowered traffic, flooding and temperatures, stimulated nearly US$2 billion in urban redevelopment and attracts 64,000 visitors a day. That effort to green cities is led by the World Economic Forum , the Alexander von Humboldt Biological Resources Research Institute in Bogota and the Colombian government.
That could be from floods - identified as the most common natural risk across more than 1,600 cities with over 300,000 inhabitants - due to problems such as loss of coastal mangroves that keep storm surges at bay or waste-clogged rivers, it said. Spending US$583 billion a year by 2030 on such solutions and projects that free up city land for nature could create more than 59 million jobs, including 21 million dedicated to restoring and protecting natural ecosystems, the report noted.
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