Which retail technology implementation holds a Guinness World Record for sustainability innovation?

The retail industry has seen remarkable innovations that have broken world records and transformed customer experiences globally. From the largest e-commerce platforms to groundbreaking sustainability initiatives, retail companies continue to push boundaries. This trivia question tests your knowledge about a significant retail innovation that earned a place in the Guinness World Records. Can you identify which retail technology implementation made history?

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Amazon's drone delivery system that reduced carbon emissions by 78% in its first year
The Mall of America's solar panel system, covering 5.4 million square feet of retail space
Alibaba's Singles' Day 2020 event using 100% renewable energy-powered cloud computing
The Bullitt Center in Seattle, housing 29 retail businesses in the world's first certified Living Building