It is a new online computer model that displays the energy supply and demand in a country, as well as how they relate to the country's goal of reducing greenhouse gas emissions. Named the 'Bangladesh 2050 Energy Pathway’s Calculator' (BD2050), this unique software model integrates energy production, consumption, carbon emissions, and land use in Bangladesh. This tool can assist policymakers in determining which energy sources to use in order to minimize climate impacts. Accessible to the public, users can experiment with different energy sources and demand levels up to the year 2050 to understand the effects on the country. Developed by a team of researchers from Cardiff University, led by Bangladeshi Dr. Monjur Mourshed, with support from the UK’s Department for Energy and Climate Change and Bangladesh’s Ministry of Power, Energy and Mineral Resources, this calculator is the first of its kind for a least developed country. Dr. Mourshed mentioned that the calculator is already being used in the UK, Japan, China, and India. The British High Commissioner in Dhaka, Robert Gibson, emphasized the importance of using this tool for making informed decisions about energy infrastructure in Bangladesh. Dr. Saleemul Huq, Director of the International Centre for Climate Change and Development, highlighted the significance of planning for a low carbon development pathway in Bangladesh despite its current low greenhouse gas emissions.