Part 2 • 2019 • episode "2/3" • War on Plastic with Hugh and Anita

45:43

In the depths of the Black Sea lies a landscape of eternal darkness. With no light and no oxygen in the sea's anoxic layer, no life can survive, except perhaps the ghosts of ancient mariners whose ships foundered thousands of years ago. Because the environment cannot support the organisms that typically feast on organic materials, such as wood and flesh, there is an extraordinary opportunity for preservation, including shipwrecks and the cargos they carried. In the year 2000, on his third trip to the Black Sea, explorer Dr. Robert Ballard discovered a miraculously well-preserved Byzantine shipwreck, but his team could only take pictures. Now, Ballard returns with archaeologist Dr. Bridget Buxton and Dr. Sergiy Voronov of the Ukrainian Department of Underwater Heritage, and uses state-of-the-art technology and a revolutionary $1.5 million robot known as "Hercules" to excavate two shipwrecks for the first time ever, including one of the most pristine ancient vessels ever found. In 2006, Ballard and the team returned to survey the area for more shipwrecks, and last year began excavations on Sinop D, and Chersonesos A, a 10th-century shipwreck found off southern Crimea at a depth of 135 meters. At Chersonesos A, the team excavated the ship's cargo of nearly 200 jars commonly found at Byzantine sites on the shores of the Black Sea, including Chersonesos. The bright orange color of the nearly 1,000-year-old jars was completely preserved, to the team's amazement. From there, the team sailed to the deeper site, Sinop D, which was the focus of the 2007 survey. The team hoped to answer questions about the ship's construction, its cargo, and how the anoxic conditions had affected its preservation. Ballard and his team have only two weeks, so they must work in perfect precision on their hunt for the Ghost Ships of the Black Sea. Ballard calls this site "the greatest museum on Earth," but his team of marine archaeologists has only begun to scratch the surface of the Black Sea's depths.

2007 • Environment

49:05

We are all seeing rather less of the Sun. Scientists looking at five decades of sunlight measurements have reached the disturbing conclusion that the amount of solar energy reaching the Earth's surface has been gradually falling. Paradoxically, the decline in sunlight may mean that global warming is a far greater threat to society than previously thought.

Environment

4:06

We’ve all been told that we should recycle plastic bottles and containers. But what actually happens to the plastic if we just throw it away? Emma Bryce traces the life cycles of three different plastic bottles, shedding light on the dangers these disposables present to our world.

TED-Ed • Environment

59:15

A unique journey around the weird and wonderful planet that we call home.

Environment

105:41

This feature documentary tells the story of the story of the pioneers who founded Greenpeace and defined the modern green movement. In 1971 a brave group of young activists set sail from Vancouver in an old fishing boat. Their mission: to stop Nixon's atomic bomb tests in Amchitka, a tiny island off the west coast of Alaska. It was from these humble but courageous beginnings that the global organisation that we now know as Greenpeace was born. Chronicling the fascinating untold story behind the modern environmental movement and with access to dramatic footage that has not been seen for over 40 years, this gripping new film tells the story of eco-hero Robert Hunter and how he, alongside a group of like-minded and idealistic young friends in the '70s, would be instrumental in altering the way we now look at the world and our place within it. These campaigning pioneers captured their daring and sometimes jaw-dropping actions on a range of film cameras and Greenpeace granted acclaimed director Jerry Rothwell access to this vivid archive to make his thrilling, sometimes terrifying film. Greenpeace was born in 1971 when a ragtag group of journalists, hippies, and scientists living in Vancouver tried to stop a US atomic test. Fortunately, they were media savvy from the beginning, capturing their seat-of-their pants activist adventures on film. The youthful energy is palpable in action-packed scenes, including one in which activists confront a Russian whaling ship in a tiny Zodiac dingy. Soon, though, idealism comes up against reality, compromise, human nature, and the complexities of managing a growing organization. This insightful film is also a vibrant, moving reflection about the ongoing struggle to balance the political and the personal.

2015 • Environment

53:16

All over the world, scientists are discovering traces of ancient floods on a scale that dwarfs even the most severe flood disasters of recent times. What triggered these cataclysmic floods, and could they strike again? In the Channeled Scablands of Washington State, the level prairie gives way to bizarre, gargantuan rock formations: house-sized boulders seemingly dropped from the sky, a cliff carved by a waterfall twice the height of Niagara, and potholes large enough to swallow cars. Like forensic detectives at a crime scene, geologists study these strange features and reconstruct catastrophic Ice Age floods more powerful than all the world’s top ten rivers combined. NOVA follows their efforts to uncover the geologic fingerprints of other colossal megafloods in Iceland and, improbably, on the seabed of the English Channel. There, another deluge smashed through a land bridge connecting Britain and France hundreds of thousands of years ago and turned Britain into an island for the first time. These great disasters ripped through terrain and transformed continents in a matter of hours—and similar forces reawakened by climate change are posing an active threat to mountain communities throughout the world today.

NOVA PBS • 2017 • Environment