Ep 7. London

Zac and Darin head to London for the seventh episode of Down to Earth with Zac Efron's first season. In this episode, the dynamic duo focuses on sustainability efforts in the urban city and surrounding areas. They learn about the history of London's pollution problems and see how the city has evolved to become one of the greenest cities in Europe.

To kick off their trip, Zac and Darin take a bike ride around the city. They visit the Queen Elizabeth Olympic Park, which was built for the 2012 London Olympics and has been transformed into a lush green space. They also check out a company that creates energy from organic waste, which is being used to power homes throughout the city.

Next, Zac and Darin explore the River Thames, a major source of London's pollution in the past, but now has been transformed into a thriving ecosystem. They meet with a group of volunteers who are cleaning up the river, removing debris and plastic that could have a negative impact on marine life. They also learn about a project where oysters are being used to filter the water and improve the river's overall water quality.

Zac and Darin then visit a rooftop farm, located in the heart of London. The farm grows a variety of fruits and vegetables that are sold to local restaurants and markets. The farm also has a beekeeping operation, which provides local honey for the city. The duo learns about the importance of urban farming and how it can be used to address food insecurity and reduce transportation emissions.

In the final part of their trip, Zac and Darin visit a small town outside of London, where they meet with a group of volunteers who are working to restore an abandoned railway trail. The trail is being transformed into a greenway that will be accessible to the public and provide a space for biking, walking, and running. Zac and Darin pitch in to help with the project, planting trees and cleaning up debris along the trail.

Throughout the episode, Zac and Darin emphasize the importance of sustainability efforts in cities and how each person can make a difference in their own community. They showcase how London has transformed from a polluted urban center to a leader in sustainable practices and highlight the different ways individuals and organizations are making a positive impact. By the end of the trip, Zac and Darin leave inspired to continue exploring sustainability efforts in other cities around the world.