Atmosphere • episode "S1E2" • Earth: The Power of the Planet

59:45

Dr Helen Czerski reveals how shifting ocean water distributes heat and nutrients around the Earth. This process is linked to almost every aspect of human existence, and the lecture explores how dependent we are on the ocean for weather, food supply and connection between land masses - as well as exploring what needs to be done by humans to maintain this vital element of the Earth's ecosystem.

S1E2 • BBC Royal Institution Christmas Lectures - Planet Earth: A User's Guide • 2020 • Environment

59:08

Ice may be nothing more than frozen water but, as Iain explains, it holds extraordinary power. Descending 150m down a frozen waterfall, he sees a glacier in action from below and discovers why the huge Jacobshaven glacier is retreating, he shows how it shaped our past and may now threaten our future.

S1E3 • Earth: The Power of the Planet • Environment

18:49

This special report looks at the domino effect of environmental and atmospheric factors that drive the globe to wetter, hotter, drier and colder extremes.

7/10 • Catalyst: Season 1 • 2015 • Environment

46:12

A look at scientists' claims about human contribution to global warming, and how statistician Leonard Tippet's investigation into snapping cotton threads helps predict extreme weather.

S1E2 • Climate Change by the Numbers • 2016 • Environment

53:16

NOVA follows a team of volcano sleuths as they embark on a worldwide hunt for an elusive volcanic mega-eruption that plunged the medieval earth into a deep freeze. The mystery begins when archaeologists find a hastily dug mass grave of 4,000 men, women, and children in London. At first they assume it's a plague pit from the Black Death, but when they date the bones, they're a century too early. So what killed off these families? The chronicles of that time describe a run of wild weather that devastated crops and spread famine across Europe. NOVA's expert team looks for the signature of a volcanic eruption big enough to have blasted a huge cloud of ash and sulfuric acid into the atmosphere, which chilled the entire planet. From Greenland to Antarctica, the team finds telltale "fingerprints" in ice and soil layers until, finally, they narrow down the culprit to a smoldering crater on a remote Indonesian island. Nearly 750 years ago, this volcano's colossal explosion shot a million tons of rock and ash into the atmosphere. Across the globe, it turned summer into winter. What would happen if another such cataclysm struck again today?

NOVA PBS • 2017 • Environment

53:21

Coral reefs are not just beautiful, they are also home to over a quarter of all marine life and are crucial to human societies around the globe. But as the climate changes and oceanic heat waves become commonplace, corals are bleaching and reefs are dying off. Now, marine biologists from across the world are teaming up to counteract this catastrophe with a technique called assisted evolution. Follow scientists as they attempt to crossbreed heat-resistant corals, and even transplant corals’ algae, in a race to save the coral reefs from extinction

NOVA PBS • 2021 • Environment