Final answer:
Ghertner emphasizes that environmental knowledge is local and context-specific, moving away from the notion of universal scientific laws and acknowledging that environmental science must adapt to specific circumstances and cultural contexts.
Step-by-step explanation:
In addressing the question of what additional dimension of environmental knowledge Ghertner emphasizes, it is clear that the emphasis is on the context-dependency and locality of scientific knowledge. While we have discussed how scientific knowledge of the environment can be unstable and political, Ghertner points to the importance of understanding that such knowledge is also local and context-specific (d). This acknowledges that environmental knowledge and scientific findings are not simply facts floating in the abstract but are intimately connected to the places and societies from which they emerge, and they reflect the particularities of those contexts.
The assertion that scientific knowledge is local and context-specific recognizes that the environment is not a single entity but comprises diverse ecosystems, each with unique characteristics and problems. Moreover it underscores that the relationships between humans and their environments are influenced by a multitude of cultural, economic, and political factors. This view moves away from the notion of universal laws in science and towards an understanding that our environmental knowledge and responses need to be tailored to specific situations and perspectives just as politics itself adapts and changes in response to new information and conditions.