Final answer:
The goal not related to sustaining the environment is 'Considering climate change issues when building roads'. The others are coherent with sustainable practices in agriculture and resource conservation.
Step-by-step explanation:
The item that is NOT a goal for sustaining the environment is 'Considering climate change issues when building roads', as the other options directly address sustainability in agricultural practices and resource management. The goal of sustainability is to meet present needs without compromising the ability of future generations to meet their own needs. This concept, which emerged due to concerns such as overpopulation and shrinkage of world food supplies, intertwines with environmental protection.
Aspects like improving access to clean drinking water, adjusting crop variety and planting seasons, and creating buffer zones are integral to sustainable agricultural practices and land use policies that ensure the long-term health of ecosystems and human societies. Developing such strategies assists in safeguarding critical resources like water and in preserving biodiversity and nutrition security. However, considering climate change when building roads, while important to overall environmental planning, doesn't directly sustain the environment in the immediate sense as the other options do, which are focused on directly managing and conserving natural resources and agricultural practices.