Regreening The Desert - VPRO Backlight is a compelling and thought-provoking documentary feature film that takes the audience on an eye-opening journey through some of the most arid regions of the world. This inspiring film is not just about the devastating impact of desertification and deforestation but offers hope through solutions that humans can implement to combat these crises.

The film kicks off with a sobering exploration of the effects of climate change, specifically desertification, on various world ecosystems. It delves deeply into the harsh realities of soil degradation and its toll on the human societies dependent on these very ecosystems for their livelihoods. While the truth seems bleak, the film uses this rather grim depiction to set the stage for an invigorating narrative about restoration.

The main focus of the film is the visionary efforts by various thinkers, scientists, and ecological warriors who are on the front-lines of this struggle, working tirelessly to reverse desertification and to 'regreen' areas that have been severely impacted. Their passion and commitment form the crux of the film and their actions, solutions, and ideas offer hope amidst the grim reality of climate change.

John D. Liu, an international journalist and filmmaker, plays an essential role within the narrative of the film. He has dedicated his life to documenting and researching large-scale ecosystem restoration projects worldwide. His rich knowledge and insights guide the audience through different parts of the globe, including China, Jordan, and Ethiopia – all places working hard to reverse environmental degradation. Liu's tireless efforts and dedication clearly come through, making him a source of inspiration as the film progresses.

Warren Brush, another notable character portrayed in the film, is an international permaculture designer, mentor, and storyteller who applies his knowledge of permaculture to helping communities find sustainable solutions to environmental challenges. Brush's insightful commentary and involvement in various regreening projects provide key highlights throughout the film.

Additionally, Regreening The Desert - VPRO Backlight introduces the audience to new and innovative techniques being employed around the world to combat desertification and improve soil health. For example, the ingenious method of turning sand into fertile ground by using water retention landscapes and holistic grazing management techniques. The documentary brings these techniques to life and illustrates the incredible potential they have in reversing environmental damage, encouraging sustainable agricultural practices, and improving local livelihoods.

Throughout the film, the exploration and focus are centered on the theme of hope. Despite the daunting challenges, the idea that 'it is possible to restore ecosystems' is reinforced. The move towards a greener planet is shown not to be an unreachable dream but a growing reality made possible by collective efforts, sustainable practices, and nature-based solutions. Indeed, it illustrates the power of human ingenuity and resilience when faced with the enormous challenge of climate change.

The film is remarkably well done and ignites a sense of urgency, but also resilience and determination. The attention to detail, compelling storyline, and high-quality cinematography make it a visual treat while being deeply impactful and thought-provoking.

In conclusion, Regreening The Desert - VPRO Backlight is not just a film, it's a call to action. It astutely captures the daunting environmental challenges the world is facing while offering hope and practical solutions. It is an essential watch for those passionate about the environment, restoration efforts, and the future health of our planet. This film underscores the rallying call that humans have the potential to not just be the cause of environmental degradation but crucially the solution to it.