Over the next three decades, emerging markets and developing economies (EMDEs), and especially middle-income countries, are projected to account for much of the growth in global economic activity and energy use. While a decisive move to low-carbon technologies and energy efficiency would advance both their development goals and a stable climate, the countries have yet to fully tap this opportunity. The multilateral development banks (MDBs) are in a unique position to help lower barriers to low-carbon investments in EMDEs and unlock these sustainable development opportunities. Their…