Final answer:
Walmart reduced its energy consumption through methods such as adding skylights, reducing packaging, redesigning milk jugs, and optimizing transportation routing. These initiatives align with Walmart's commitment to sustainable practices and global emission reduction goals. All the given options are valid.
Step-by-step explanation:
Walmart has initiated several strategies to reduce its energy consumption, encompassing various aspects of its operations. First, adding skylights for natural light diminishes the need for artificial lighting during the day, conserving a significant amount of electricity. Secondly, reducing packaging not only cuts down on waste but also results in less energy used in the production and transportation of goods. Thirdly, redesigning the milk jug optimizes the packaging and distribution process, leading to energy savings in refrigeration and transportation. Lastly, better transportation routing of trucks ensures that products are delivered more efficiently, thereby reducing fuel consumption and greenhouse gas emissions.
Each of these initiatives contributes to Walmart's overarching goal to reduce their carbon footprint and move towards sustainable practices, as well as encouraging consumers and other companies to adopt environmentally friendly habits.