What if microbial protein could help reverse climate change?

Demographic, socio-political and economic pressures have made eating meat an unsustainable practice for the long term. However, meat substitutes have proved unpopular, owing to social norms and a lack of trust; some alternatives also contribute heavily to climate change. Could microbial protein be a sustainable alternative to meat that not only solves these multidimensional pressures but also contributes actively to reversing climate change?