Table 97D makes the climate impact of metals visible in a compact educational reference. It helps users look at metal production not only through application, strength or chemical properties, but also through CO₂ impact. That makes material choice part of climate education and circular design.
The value is comparability. When students and professionals see that metals differ strongly in climate impact, it becomes easier to discuss design choices, recycling, substitution and efficient material use. Table 97D turns that discussion into something concrete and accessible.