Achieving global decarbonization goals demands an efficient and equitable transition to low-carbon electricity. However, renewable energy resources like solar and wind are unevenly distributed across regions and vary temporally, creating significant challenges for matching supply and demand. Most electricity systems operate within isolated regional or national boundaries, which exacerbates inefficiencies, increases reliance on fossil fuels during renewable downtimes, and raises overall system costs. Transcontinental power pools are a solution to these challenges. By interconnecting electricity grids across continents, renewable energy-rich regions can supply power to high-demand areas, reducing curtailment, stabilizing supply, and lowering costs. Addressing these limitations through transcontinental power pools is critical for creating a low-carbon future that is both efficient and resilient.