While devastating for public health, COVID-19 lockdowns offered an unintended benefit: a glimpse into a cleaner planet. With reduced travel and industry, pollution levels plummeted. Imagine skies clear of smog and waterways teeming with life! This unexpected experiment highlighted the environmental impact of human activity. Researchers documented significant drops in air and water pollution, showcasing the Earth's potential for healing. However, these improvements were temporary. The true challenge lies in harnessing these learnings to create sustainable practices. Can we maintain a healthy environment while keeping society and economies functioning? By studying the environmental upsides of lockdowns, we can inform policies and technologies that promote a greener future, one that benefits both people and the planet.