Supercool11 Kesä 2025

The ROI on Climate Capital: A Mayor’s Blueprint for Citywide Renewal

Jaime Pumarejo helped lead Barranquilla, Colombia, through a stunning transition. When he first joined the city’s government in his twenties, Barranquilla was under bankruptcy protection, poverty was high, and public trust was fractured. Today, it serves as a global model for how climate action can drive economic growth, attract investment, and deliver tangible benefits to people’s lives.

In 2020, when Pumarejo became mayor, he accelerated the transformation. He established a public-private tree company to enhance property values, increase tax revenue, and enhance climate resilience. Delivered 300 parks co-designed by residents. Made biodiversity and eco-tourism part of the city’s economic engine. And positioned Barranquilla to lead on clean energy, with major solar projects and Colombia’s first offshore wind farm underway.

Jaime also secured capital on better terms. Convinced development banks to change how they lend. And showed that cities aren’t risky—they’re investable.

Now, as a member of the SDSN Global Commission for Urban SDG Finance, he’s helping cities around the world unlock the climate capital they need to cut emissions and build the low-carbon future.

This is what the ROI on climate looks like. Not someday—now.

Show Notes

Guest: Jaime Pumarejo

Organization: SDSN Global Commission for Urban SDG Finance, whose Secretariat is housed at the Penn Institute for Urban Research (Penn IUR)

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