Years of Living Dangerously - Episode Guide

Harrison Ford investigates the effects of Indonesia's palm oil industry. Don Cheadle visits a Texan town that has been economically devastated by drought. Pulitzer Prize-winner Thomas Friedman examines the role of climate change in Syria's volatile state.

Harrison Ford continues his investigation into the global effects of the palm oil industry, exploring the corruption that has deforested the Indonesian landscape and created the world's largest emitter of greenhouse gases. Meanwhile, Former Governor Arnold Schwarzenegger joins an elite team of wild-land firefighters known as "Hot Shots" as they battle a new breed of forest fires made more deadly by climate change, and discovers another killer wiping out trees at an even faster rate than the fires.

In episode three, MSNBC's Chris Hayes shadows climate change skeptic, Republican Congressman Michael Grimm, for a year in Staten Island in the wake of Superstorm Sandy and questions what he might have learned about climate change in the process, and conservationist M. Sanjayan travels to the ends of the earth-including Christmas Island-to question some of the world's top climate scientists as they collect key data unlocking the past and future of our planet's changing climate.

In episode four, 60 Minutes' Lesley Stahl travels to Greenland to investigate the effects of global warming in the Arctic; Down south, Ian Somerhalder travels to North Carolina to listen in on both sides of the evangelical community's debate over climate change. Somerhalder finds himself entrenched in the middle of not only a religious debate, but a familial one. The father: a megachurch preacher who doesn't believe in climate change. The daughter: an activist trying to shut down the local coal-fired power plant.

In episode five, Olivia Munn profiles climate-conscious governor Jay Inslee of Washington State, and together they discuss the issues he's faced since being elected. Meanwhile, New York Times columnist Mark Bittman probes New Jersey Governor Chris Christie on the topic of man-made climate change during the rebuilding of his state's coastline post-Superstorm Sandy. Christie used to acknowledge the scientific consensus on climate change, but steadfastly refused to discuss it during the rush to rebuild.

In episode six, America Ferrera profiles prominent climate change skeptic James Taylor of the Heartland Institute as he crusades against clean energy, and investigates the battle over the future of renewable energy in the US. New York Times columnist Mark Bittman returns to conduct a yearlong investigation into natural gas, which has been touted as "America's energy source" and a way towards a cleaner, greener future. Is it true?

Jessica Alba meets three members of Climate Corps - an innovative MBA-focused program - as they try to convince America's corporations that sustainability can actually boost their bottom lines. Pulitzer Prize-winner Thomas L. Friedman finds himself in Egypt to explore how what happens in the wheat fields of Kansas plays out on the volatile streets of Cairo. And MSNBC's Chris Hayes reveals an intimate story about life after Superstorm Sandy, with the most economically vulnerable trying to survive the impacts of climate change.

Matt Damon investigates the impact of extreme heat on human health and mortality, with a focus on research that has uncovered how rising temperatures are creating a worldwide public health emergency. Michael C. Hall visits Bangladesh to explore the prediction that by 2050, a global migration of upwards of 150 million people will produce the single most daunting burden to our future. And Thomas L. Friedman travels to Yemen to conclude his look into how climate stress can push volatile political situations over the edge.

In the season finale, Michael C. Hall concludes his journey to Bangladesh where rising seas are expected to submerge 17% of the nation. After traveling to Christmas Island in episode three, M. Sanjayan returns to further address and question some of the top climate scientists in their fields as they collect key data unlocking the past and future of our planet's changing climate. His destination: Tupungatito, the northernmost historically active stratovolcano in the southern Andes.

David Lettermantravels to India to investigate the country's efforts to expand its inadequate energy grid, power its booming economy and bring electricity for the first time to 300 million citizens. He interviews Prime Minister Narendra Modi, travels to rural villages where power is a scarce luxury and explores the US role in India's energy future. In Florida and Nevada, Cecily Strong finds former officials and other insiders who reveal how utility companies are blocking the growth of solar energy in the US.

Jack Black explores how Miami and other low-lying coastal areas can survive rising seas. Although the political and business community is largely in denial, he finds a few legislators, residents, activists and scientists racing to solve the problem before disaster strikes. Ian Somerhalder travels to the Bahamas where he dives with scientists from Woods Hole Oceanographic Institute to learn about potential superstorms

In Africa, Thomas Friedman finds an increasing population of refugees fleeing wars, rising sea-levels and hurricanes. Don Cheadleexplores how governor Jerry Brown is fighting the historic California drought while also fighting climate change. A Central Valley scientist shows Cheadle the danger of a global water and food crisis.

Ty Burrell looks into the progress of electric vehicles (EVs) and automated vehicles, from Silicon Valley's technology innovators to Atlanta, Georgia, where generous EV incentives were recently killed. Arnold Schwarzenegger explores how the military is adapting to climate change by increasing energy efficiency and using renewables. In Kuwait, he sees how fuel convoy's are responsible for most US soldier deaths.

Joshua Jackson travels to the Philippines and Australia's Great Barrier Reef to investigate the impacts of climate change on our world's oceans and the millions of people who rely on their ecosystems for their livelihood.

At the Great Barrier Reef in Australia, Joshua Jackson investigates the impacts of ocean warming on coral reefs and looks at the predicted impact of ocean acidification. He travels to the Philippines, whose citizens heavily rely on healthy reefs for food and other ocean products and protection from storms. Nikki Reed looks at the best single solution for climate change: putting a price on carbon. She joins activists and interviews the mayor of Vancouver, were carbon pricing has been a success.

In Kenya, Aasif Mandvi explores the threat of climate change poses to endangered species. Drought is compounding poaching and loss of habitat. In Washington, DC, Bradley Whitford looks at the progress of activists like Jay Butera on persuading Republicans to forge bipartisan efforts to act on climate change.

Burning coal remains a major source of energy, emitting toxic pollutants and climate-altering carbon dioxide. In Illinois America Ferrerameets with activists who want to shut down a local coal plant, and with a mayor who want to keep it open. She learns about an option that can provide clean energy and green jobs. Sigourney Weaver investigates China's impact on on today's global environment, and the progress it is making to reduce emissions even as its economy grows.