Life at 50°C • 2021 • This World

33:28

Graham visits ancient mounds in North America and wonders if they contain astronomical significance — or even warnings of an apocalyptic climate event.

S1E6 • Ancient Apocalypse • 2022 • Environment

66:05

Craig Reucassel tackles one of our planet's biggest challenges: climate change, exploring where our energy comes from, health effects of transport and travel emissions plus the carbon footprint of what we eat.

S1E1 • Fight For Planet A: Our Climate Challenge • 2020 • Environment

116:02

The launch of the BBC's ambitious seven-year natural history project, in which six presenters visit six of the planet's most threatened ecosystems to meet the people fighting to restore the Earth's delicate balance. Chapter 1: Steve Backshall travels to the Maldives, an area facing significant challenges because of climate change. Warming seas and the acidification of the oceans have led to coral bleaching on a massive scale, destroying the surrounding ecosystem. The biodiversity of the reefs provides food security, income and other benefits to the people of the Maldives, and Steve finds that they are working hard to try to stem the tide of destruction. He also goes diving off the reefs to check on a group of manta rays, whose presence offers a clear indication of the health of the reef. In Iceland, Chris Packham learns more about the effects of global warming. Temperatures in the Arctic are rising at more than twice the annual global average. Snow and ice are melting at an increasing rate, which contributes to rising sea levels and is likely to provoke extreme temperature events beyond the Arctic. As one of the eight Arctic States, Iceland is being dramatically affected by rising temperatures, with the lives and livelihoods of many islanders being threatened. Chris also discovers that melting sea ice is opening the Arctic to navigation. These seas are home to many species of whales, so Chris joins a team of young scientists monitoring the impact of increased commercial shipping on humpback whales. On the other side of the world, Ella Al-Shamahi visits Cambodia in Southeast Asia, an area experiencing increasing economic growth. However, growth is putting massive pressure on natural resources, with ever-expanding cities and devastating overexploitation of the natural world. The Mekong river is the lifeblood of this region, but whole sections of it are under pressure. Ella meets a fishing community living on the Tonle Sap lake. The lake used to offer rich fishing grounds for local communities, but the construction of many dams along the wider Mekong is now threatening to destroy the biodiversity of this once abundant lake. The building of new roads has given poachers easier access to forests, and the illegal wildlife trade is big international business. Ella visits a project in Cambodia that rescues and rehabilitates illegally trafficked wildlife, including pangolins, the most trafficked mammal on Earth. Chapter 2: Liz Bonnin travels to California to learn about the increasingly invasive wildfires hitting the headlines. Scientists can see clear links between the fires, climate change, raised temperatures and an extended drought season. There is one crucial element that is key to a sustainable future in California: biodiversity. Loss of keystone species and large carnivores is a threat to the state's ecosystems, and conservationists and scientists are mobilising to save wildlife from wildfires and to treat their burns. Liz also visits the Pacific coast of California, where warming seas have brought with them a new resident, great white sharks. With each shark consuming up to 18 kilos of prey at a time, the impact they could have on the marine ecosystem is being studied intently. Ade Adepitan travels to Kenya to look at the effects rising temperatures are having on the land. Hundreds of millions of Africans depend on rainfall to grow their food and keep livestock, and the capacity for adaptation is low. Ade also visits a project in Kenya that is going to extraordinary lengths to safeguard the future of its most charismatic creature, the African elephant. Over in Brazil, Gordon Buchanan discovers a pioneering project that is trying to save one of the Amazon's iconic predators, the jaguar. Brazil is the most biodiverse country in the world, and as well as the Amazon rainforest, it is home to one of the world's most important wetlands, the Pantanal. This area is home to high numbers of jaguars, but in 2020, wildfires destroyed 30 per cent of the Pantanal, killing an estimated 17 million animals. More than a quarter of the resident jaguars were directly impacted by these fires, through habitat loss, food shortages, injury and death.

2022 • Environment

57:30

After one of the hottest years on record, Sir David Attenborough looks at the science of climate change and potential solutions to this global threat. Interviews with some of the world’s leading climate scientists explore recent extreme weather conditions such as unprecedented storms and catastrophic wildfires. They also reveal what dangerous levels of climate change could mean for both human populations and the natural world in the future.

2019 • Environment

29:10

Account of the ill-fated Canadian Arctic Expedition of 1913 when a group of scientists were sent to the Arctic to look for a new continent on the eve of WWI, an astonishing story of disaster and perseverance. On board were 10 scientists, 13 crewmembers, four Inuit hunters, one seamstress, her two children, and one passenger. Of these, 11 never returned and most were not heard from again until September 1914.

2007 • Environment

58:55

Last century, earthquakes killed over one million, and it is predicted that this century might see ten times as many deaths. Yet when an earthquake strikes, it always takes people by surprise. So why hasn't science worked out how to predict when and where the next big quake is going to happen? This is the story of the men and women who chase earthquakes and try to understand this mysterious force of nature. Journeying to China's Sichuan Province, which still lies devastated by the earthquake that struck in May 2008, as well as the notorious San Andreas Fault in California, Horizon asks why science has so far fallen short of answering this fundamental question.

Horizon • 2009 • Environment