What makes CO2 by Stahlmann notable?

The album received significant attention in Germany, charting on the German Albums Chart and showcasing Stahlmann's growing influence within the Neue Deutsche Härte scene. Critics noted its thematic exploration of personal struggle and resilience, which resonated with fans during a time of social unrest. Released in 2015, 'CO2' marked Stahlmann's fourth studio album, following their previous work 'In Gloom.' At this point in their career, they were solidifying their position within the Neue Deutsche Härte genre, known for integrating metal with electronic elements, and expanding their fanbase across Europe.