How do you tell dusk from dawn in the age of climate change? In the first episode of The Optimist's Guide to the Planet, host Nikolaj Coster-Waldau begins his global journey to find out. From the scientists behind carbon neutral jet fuel to the oceanographer creating cloud cover for the Great Barrier Reef, the answer becomes clear: hope.

Shelter is one of humanity's most basic needs; but as the global population grows, so does the construction industry's environmental footprint.

A look at nature's amazing ability to regenerate, and how we can harness this innate power to solve the problems we face.

Whether you’re a vegan or a carnivore, a health nut or a junk food addict, eating is the ultimate and most essential act of consumption, and the different ways we grow, raise, and consume our food has an enormous impact on the planet. Nikolaj’s journey in this episode focuses on ways to rethink how we grow and cook the food that sustains us.

Nikolaj meets some inspiring engineers, mechanics and entrepreneurs who may have solutions to help humans continue moving in environmentally friendly ways.

Nikolaj's journey toward hope continues as he searches for innovators transforming and revitalizing the world.