This document summarizes a study on scaling up existing low-carbon solutions globally. The study found that if comparable countries achieved by 2030 what some have already achieved today, global emissions could be reduced by 12 gigatons per year at a cost of less than $94 billion. The study examined 17 existing solutions from both developed and developing countries. A follow-up project looked at 15 Nordic low-carbon solutions across sectors like transportation, energy production, and buildings. Barriers to scaling up these solutions include upfront costs, fossil fuel subsidies, lack of awareness, and potential negative social impacts. Countries can overcome barriers by implementing policies like carbon pricing, mandates, clear targets, and information campaigns with social safeguards. International