You might also like
Their beauty has captivated us for millennia. Their cost can be extraordinary–some are even considered priceless. Precious gems like diamonds, rubies, emeralds, opal, and jade are the ultimate treasures of the earth, and each one is made from a specific–and often torturous–recipe of chemistry, pressure, and heat. The secrets to their sparkle, color, and even strength lie deep inside the gems themselves, but could they also hold clues to one of the most enduring mysteries in the field of geology? From Tiffany’s workshop in New York to the sapphire mines of Sri Lanka, from North Carolina’s emerald fields to the jade-laden Forbidden City of China.
Part 1 • Treasures of the Earth • 2016 • Environment
We investigate the emerging threats posed by plastic pollution to life on Earth. The hyper-convenience of our modern way of living produces staggering volumes of plastic waste daily. Scientists now know that this waste breaks down into ever tinier pieces, spreading right across the globe and posing direct health risks, including through bioamplification of toxic additives moving up the food chain. We explore the drastic changes it will take to deliver a sustainable future for our planet.
2021 • Environment
Japan has more than 100 active volcanoes--two in particular may be on the verge of unleashing a devastating sequence of deadly eruptions and secondary earthquake activity. Join intrepid volcanologist Tom Pfeiffer's dangerous and exhilarating journey to the foot of these angry giants.
S2E4 • Volcanic Odysseys • 2016 • Environment
We are living in exceptional times. Scientists tell us that we have 10 years to change the way we live, avert the depletion of natural resources and the catastrophic evolution of the Earth's climate.
2009 • Environment
Dr Helen Czerski delves into the Horizon archive to chart the transformation of a little-known theory into one of the greatest scientific undertakings in history.
Filmmakers travel to six continents and 20 countries to document the impact humans have made on the planet.
2018 • Environment