The Greenhouse Gas Emissions Study Amendment Act of 2026 aims to address the urgent challenges posed by extreme weather in the District of Columbia, which disproportionately affects vulnerable communities. This legislation mandates the Department of Energy and the Environment (DOEE) to solicit proposals and provide a $200,000 grant to conduct a comprehensive study assessing the total costs of greenhouse gas emissions from 1995 to 2024. The study will utilize attribution science to evaluate the impacts of these emissions on public health, housing, flood preparedness, and other essential systems, while also identifying high-priority infrastructure projects necessary for adaptation and mitigation.

The bill outlines specific requirements for the study, including a detailed report that categorizes the costs incurred and projected costs related to greenhouse gas emissions and necessary adaptations. Additionally, it includes an economic analysis to determine potential costs that may be passed on to taxpayers from fossil fuel companies that have significantly contributed to emissions. The findings of the study are to be submitted to the Mayor and the relevant Council committee by November 30 of the following fiscal year, ensuring that the District can make informed decisions regarding capital investments and emergency preparedness in the face of increasing climate-related risks.