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Calories vs Carbon: Can Human Energy Replace Emissions?

September 9, 2025

Human energy can’t replace fossil fuels — but it can challenge how we think about impact. This post explores how every calorie burned with purpose can fuel change, not carbon.

Climate change is a health crisis

Marcus Perezi-Tormos

July 28, 2025

Climate change is already harming our health, from air pollution to heatwaves. This post explores the urgent link between climate and wellbeing, and how movement can be a powerful act of resistance.

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uBurn is an iPhone, Android and web app that converts all the calories you burn into fundraising for the climate and environmental organisations of your choice.