C40, UCCRN and Partners Quantify, Sound Alarm on Climate Threats to Urban Residents

Americas, July 2 2018

Skyline view of Tokyo with orange and blue lights illuminating its streets

Skyline of Tokyo
Photo by Pawel Nolbert on Unsplash

INTERNATIONAL: Cities and partners have issued a joint technical report, highlighting data analyses and case studies developed by the Urban Climate Change Research Network (UCCRN). It calls attention to urbanization trends, particularly in Asia and Africa, and illustrates the breadth and magnitude of climate change impacts on cities.

The first global-scale assessment of its kind, the report titled, ‘The Future We Don’t Want: How Climate Change Could Impact the World’s Greatest Cities,’ reviews both direct and indirect climate change impacts across six themes: 1) heat extremes; 2) heat extremes and poverty; 3) water availability; 4) food security; 5) sea level rise and coastal flooding; and 6) sea level rise and energy systems. The report notes that cities will most commonly encounter and have to manage risks in these areas.

The analysis compares numbers of people who currently face threats in each area to those estimated in the 2050s. It shows that by mid-century, climate change could pose an existential threat to people in cities around the world, noting that global average temperatures are already 1°C higher than preindustrial levels.

To generate the report, the research team reviewed global data for the six themes, and contextualized such data through city-level case studies spanning multiple regions, including Africa, Asia, Europe, Latin America and the Caribbean (LAC) and Northern America. Researchers mapped, layered and examined the data using a geographic information system (GIS) database. The data were gathered from 2,586 cities with a total estimated population of over 1.4 billion people, which is expected to exceed 3.5 billion by 2050.

For the full article, visit the source: IISD SDG Knowledge Hub

Re-posted with permission

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