This publication outlines the challenges of investing in low-carbon and climate-resilient technologies and activities (“green market segments”) in the Latin American and Caribbean (LAC) region, explores how guarantees  can respond to those challenges, and provides various examples of guarantees used in region. It is based on an empirical analysis of examples of the use of guarantees, and thus focuses mainly on the use of credit guarantees for green market segments. It analyzes the few examples of performance guarantees that could be identified, as they address risks perceived by private investors that are not necessarily covered by credit guarantees. The publication also highlights the role that national development banks (NDBs) can play in structuring and funding credit-guarantee schemes for their domestic markets and the unique position and capacities at their disposal to design, implement, and promote investment in green market segments effectively.