The investment from the US Department of Energy is a significant financial boost for Cleveland-Cliffs, directly supporting its decarbonization projects. This not only aids in reducing the carbon footprint of the company but also positions it favorably in the market as a leader in sustainability efforts. Such positive news is likely to be well-received by investors and could lead to a short-term increase in stock price due to perceived future benefits in operational efficiency and compliance with potential regulatory requirements on carbon emissions.