United Nations Office for Disaster Risk Reduction 129d ago

Hanging wall gardens could be a simple, green fix for rising urban heat 🌱🌡️ In many informal settlements, homes are poorly insulated and lack air conditioning — leaving residents with little escape from extreme temperatures. As cities heat up, nature-based solutions are proving their value. In Nigeria and Tanzania, researchers tested vertical gardens made from leafy vegetables grown in horizontal PVC pipes and hung on house walls in low-income neighbourhoods. 🌿 The results? • Wall surfaces up to 10°C cooler • Indoor temperatures reduced by up to 5°C • Fresh vegetables for households Cooling homes, improving comfort, and providing healthy food — all at once.