The star, who often uses her platform to speak out about the climate crisis and animal-rights, made the comment in a recent interview with Apple Music.
'Vomiting onto Mother Nature'
"I know some of us have seen the viral videos of bluer skies, dolphins in waters that we haven't seen them in*. So Mother Nature, not only are we taking a break right now, but she's getting a little bit of relief because there are way [fewer] cars on the freeway," Cyrus told Zane Lowe.
"People aren't working every day, so we aren't vomiting onto Mother Nature's beauty every single day.
"And we're starting to see what it would look like if we actually started treating the world more responsibly, so getting this little kind of breath of fresh air and a little vision for us to actually see physically what would happen if we actually really focused on climate change."
*According to fact-checker Snopes.com, Dolphins and swans were indeed spotted in some of Italy's waterways after the nationwide lockdown was imposed. However, they were not necessarily new phenomena related to reduced human activity during the COVID-19 lockdown.