What happens to the food we digest after it leaves our body? Is it waste that is thrown away or a resource that can be reused? In search of answers, director Rubén Abruña embarks on an investigative and entertaining search through 16 cities on four continents. He follows the trail of feces from the long sewers of Paris to a huge sewage treatment plant in Chicago.

A three year self-described labour of love, 2040 takes the form of a visual letter from the filmmaker to his four-year-old daughter Velvet, showing her what the year 2040 could look like “if we simply embraced the best solutions that exist today.”

Educational film about solar energy, told with striking imagery and animation.

CHARGE is proof that maniacs on motorcycles can be a force for global good. The movie follows several teams to the world's first zero-emissions grand prix on the Isle of Man – the most demanding and deadly circuit on the planet – in 2009 and on their return in 2010, 2011, and 2012. For the visionaries, it's history. For the petrol-heads it's blasphemy. What's racing without the sound and fury of internal combustion engines? CHARGE is about the future. It's about change. It's about the dream of a clean, green world. It's about the dream of winning.

A look at how climate change affects our environment and what society can do to prevent the demise of endangered species, ecosystems, and native communities across the planet.

Offshore wind farms are a major player in the move away from fossil fuels, especially in the North Sea, and they are increasing in number. But their impact on the environment is not yet clear: We take a look at ongoing research in Europe that is measuring the impact of wind turbines and their harm, or benefit, to biodiversity in our seas.

A short documentary illustrating how art can influence public perception towards environmental issues. Green Patriot Posters is a highly acclaimed multimedia design campaign that challenges artists to deepen public understanding and ignite collective action in the fight against climate change. So far, it has reached five million people through print media, public space and digital culture. The film features interviews with key Green Patriot Posters contributors (Shepard Fairey, Michael Bierut, DJ Spooky, Mathilde Fallot) and its founders (The Canary Project, Dmitri Siegel).

In 1996, electric cars began to appear on roads all over California. They were quiet and fast, produced no exhaust, and ran without gasoline... Ten years later, these cars were destroyed.

Dr George McGavin and Dr Zoe Laughlin set up base camp at one of the UK's biggest sewage works to investigate the revolutionary science finding vital renewable resources and undiscovered life in human waste. Teaming up with world-class scientists, they search for biological entities in sewage with potentially lifesaving medical properties, find out how pee can generate electricity, how gas from poo can fuel a car and how nutrients in waste can help solve the soil crisis. They follow each stage of the sewage treatment process, revealing what the stuff we flush can tell us about how we live today, and the mindboggling biotechnology being harnessed to clean it, making the wastewater safe enough to return to the environment.

Since World War II North Americans have invested much of their newfound wealth in suburbia. It has promised a sense of space, affordability, family life and upward mobility. As the population of suburban sprawl has exploded in the past 50 years Suburbia, and all it promises, has become the American Dream. But as we enter the 21st century, serious questions are beginning to emerge...

13-year-old inventor Aidan has discovered that trees use a mathematical formula to gather sunlight in crowded forests. Now he wonders why we don't collect solar energy the same way.

Bright Green Lies investigates the change in focus of the mainstream environmental movement, from its original concern with protecting nature, to its current obsession with powering an unsustainable way of life. The film exposes the lies behind the notion that solar, wind, hydro, biomass, or green consumerism will save the planet. Tackling the most pressing issues of our time will require us to look beyond the mainstream technological solutions and ask deeper questions about what needs to change.

An unemployed American worker, a Tea Party activist, and a Chinese solar entrepreneur. But who wins and who loses the battle for power in the 21st century? Through interwoven character dramas spanning the U.S. and China, Catching the Sun explores the global economic race to lead the clean energy future.

A sequel to 2006's Who Killed the Electric Car?, director Chris Paine once again looks at electric vehicles. Where in the last film electric cars were dismissed as uneconomical and unreliable, and were under multiple attacks from government, the auto industry, and from energy companies who didn't want them to succeed, this film chronicles, in the light of new changes in technology, the world economy, and the auto industry itself, the race - from both major car companies like Ford and Nissan, and from new rising upstarts like Tesla - to bring a practical consumer EV to market.

Filmmaker Jamie Redford embarks on a surprising journey across the U.S. to meet entrepreneurs, community activists and ordinary citizens who are pioneering the use of clean energy technology, often in the most unlikely places, in the process creating jobs, turning profits and making Americans’ lives healthier.

Chemical engineer and inventor Maria Telkes worked for nearly 50 years to harness the power of the sun, designing and building the world's first successful solar-heated modern residence and identifying a new chemical that could store solar heat like a battery. Telkes was undercut and thwarted by her (male) boss and colleagues at MIT, but she persevered. Upon her death in 1995 Telkes held more than 20 patents, and now she is recognized as a visionary pioneer in the field of sustainable energy whose work continues to shape how we power our lives today.

Rafea: Solar Mama follows the groundbreaking journey of one Bedouin mother living on the Jordan-Iraq border who, along with thirty illiterate grandmothers from around the world, will travel to The Barefoot College in India to become Solar Engineers. (TIFF)

The sun sends us light and energy, enabling life and growth. But it also causes scientists great concern: gigantic, unpredictable solar storms are increasingly threatening our power supply and networks. The US space agency NASA has built a space probe to investigate the causes of these mysterious storm phenomena.

In his new film, Erwin Wagenhofer is looking for the good and beautiful in this world.

How LFTR, the Liquid Fluoride Thorium Reactor, will unlock abundant clean energy stored in Earth's plentiful thorium.