Cities at the Climate Frontline: Housing, Finance and Local Action Highlighted at COP31

UN‑Habitat officials warned that up to three billion people lack adequate housing worldwide, with more than one billion living in informal settlements that are especially prone to floods, landslides and extreme heat. The conference highlighted how inadequate drainage, sanitation and electricity compound the risk for residents of poorly built homes. Leaders stressed that securing safe shelter, basic services and resilient urban planning must be treated as core climate actions, not optional upgrades, to protect the most exposed urban populations.

Cities require around $4.5 trillion in climate‑related investment each year through 2030, yet current financing covers only about one‑fifth of that amount. A new UN platform aims to unlock more than $3 billion to shield 75 million people from climate shocks by 2030, while philanthropic groups announced over $480 million to cut methane and other potent greenhouse gases, plus an additional $25 million for emissions reductions in seven developing nations. Turkey secured a $1.6 billion agreement with the Asian Infrastructure Investment Bank for climate reforms, and the Solomon Islands contributed $400 000 to the Green Climate Fund, marking the first such pledge from a small island state.

At the Leaders’ Summit, 69 mayors representing more than 250 million people pledged another year of climate action, introducing measures such as flood‑warning systems in Addis Ababa, London’s inaugural heat‑plan and incentives for improving the environmental performance of 400 commercial buildings in Melbourne. Nepal put forward a “Sagarmatha to the Sea” partnership linking mountain and coastal communities, calling for stronger early‑warning systems and dedicated climate finance. Activists, including Greta Thunberg, joined the dialogue, urging governments to translate these commitments into concrete support for the poorest urban residents.