Some people identify as Native American based on family stories. There is a more respected way to check and it does not involve a DNA test. Also, a proposed law would give indigenous people in Canada more say over their own land; during World War Two the US government built Japanese internment camps on tribal land; how the Choctaw Nation helped the Irish during the potato famine; and rock music legend Robbie Robertson recalls his childhood visits to family on the Six Nations Reserve .

(Photo: Native American dancers pose for pictures along the highway on May 11, 2018 in Cherokee, North Carolina. Located near the entrance to Great Smoky Mountains National Park on the North Carolina side of the Appalachian Mountains, and at the southern end of the Blue Ridge Parkway, the region is home to the Cherokee Nation band of Indians. Credit: George Rose/Getty Images)

Cooling down our addiction to air conditioning by building a more energy efficient AC. Also, it’s a “wind, wind, wind” for cargo ships powered by sails; engineering students in Los Angeles design quality-of-life solutions for refugee camps; a navigation app helps drivers get around Nigeria; the drive to thwart diseases like malaria and dengue by altering the genes of mosquitoes.

(Photo: Air conditioning units in Antwerp, Belgium on Tuesday, July 23, 2019. Credit: Dirk Waem/AFP via Getty Images)

Impeachment hearings have entered the public phase in Washington DC. Congress is investigating allegations that President Trump withheld aid to Ukraine to pressure it to deliver political favours. But in Ukraine they are focused on the conduct of their president, Volodymyr Zelensky, in a now infamous phone call with Trump.

Also, star basketball player Enes Kanter tells us how he became an enemy of Turkey’s president; a student suing the Trump Administration has her day in court; a controversial meme in the US gets a rebranding in Hong Kong; millennials tell boomers the world they have inherited is not okay; a song that got protesters in Lebanon to dance.

(Photo: Members of the media gather as State Department deputy assistant secretary, George Kent and acting US ambassador to Ukraine, William B. Taylor appear for a House Intelligence Committee impeachment hearing in Washington, DC. Credit: Matt McClain/The Washington Post/Getty Images)

Farmers in the US face a labour shortage, so they’re turning to new technology to fill the gap. Also, meet “Pepper", a robot that’s already replacing thousands of jobs around the world; a researcher from Silicon Valley finds a robot in his hotel room and discovers a potential security breach; how 3D printing could help the global housing crisis; and an instrument that sounds like it’s from outer space, but was invented on earth 100 years ago.

(Robots named “Pepper” work in banks across the US. They help answer basic questions and allow customers to skip the line for a cashier. Credit: Jason Margolis/The World)

The impeachment inquiry has exposed some of the ways in which the US diplomatic corps feels undermined and undervalued by the Trump administration. We visit two US universities training a future generation of US diplomats to find out whether students there are reconsidering their career choice. Also, Samantha Power reflects on some of the toughest decisions she had to make while US Ambassador to the UN; we visit the Museum of the Palestinian People that is just blocks away from the White House; the rise and fall of Richard Holbrooke, a statesman known for his diplomatic breakthroughs and outsized ego; and beatboxers on a musical mission to bring the world together.

(Photo: A view of the Washington Monument and the US Department of State's flag in Washington, DC. Credit: Brendan Smialowski/AFP/Getty Images)

About 4,000 Liberians could be at risk of deportation after the Trump administration terminated their legal status. Earlier this month, they finally got their day in federal court in Massachusetts. They’re still waiting for a ruling, but in the meantime, many of these Liberian families are stuck in limbo. They’re hanging between the prospect of life going on as usual and a new reality in which they would be forced to return to Liberia.

Also, we hear from an unauthorized immigrant who is suing the Trump administration for the right to stay in the US; Facebook is looking to set up a supreme court like system to moderate content; French chef Marc Veyrat is taking Michelin to court after losing a coveted star; and there’s a new kind of trainer that supposedly makes you faster, but some competitive runners think it offers an unfair advantage.

(A group of Liberian DED holders and their allies protest in Worcester, Massachusetts prior to a court hearing. Credit: Tania Karas/The World)

In recent years, it’s become fairly common for people to take their own bags when they go grocery shopping. But for the past 18 months, Philippa Robb and her son, Haydn, have also been bringing their own containers, to avoid food packaging and other single-use plastics. Now Philippa’s goal is to have a zero-waste home.

Also, Greta Thunberg is now a household name in environmental activism. Find out how she’s been able to inspire an international youth movement; With a camera strapped to his back, Victor the white-tailed eagle is providing a bird’s eye view of how climate change is melting Alpine glaciers; and China has hundreds of thousands of emissions-free electric buses. Now the US is trying to catch up.

(Philippa Robb and her 16-year-old son, Haydn Robb Harries, stand in their London backyard with one of their three chickens. Robb feeds the chickens leftovers in an attempt to cut down on food waste. Credit: Brenna Daldorph/The World)

An unauthorized Muslim immigrant from Uzbekistan was offered a deal by the FBI: You can remain in the US, but only if you'll spy on your fellow Muslims. He did, but then he decided he wanted to stop.

Also, the Trump administration declassified thousands of documents that reveal details of Argentina's so called ‘dirty war’; In Northern Thailand, the grandchildren of one-time CIA backed Chinese rebels transformed what used to be a secret hideaway to a tea-drinking tourist haven; and the FBI has had agents dedicated to fighting war crimes, but now that team is being disbanded.

(The J. Edgar Hoover Building of the Federal Bureau of Investigation (FBI) in Washington, DC. Credit: Eric Baradat/AFP/Getty Images)

When US presidents get on the phone to speak with foreign leaders, staff are on hand to take diligent notes. But is there a set procedure of how calls with foreign dignitaries are handled? Tom Blanford from the National Security Archives in Washington, DC says that Trump’s style has been very different compared with his predecessors.

Also, TikTok, is one of the most popular social media apps in the world but the company that owns it is based in China, and some say that's leading to censorship; When you think about the Soviet Union, you don’t often think about comedy, Michael Idov’s film ‘The Humorist’ delves into the life of a Soviet comic; the power of comedy is something stand-up comedian Noam Shuster-Eliassi is trying to harness in order to start a more honest conversation between Israelis and Palestinians; and the tale of a Russian ship captain whose message in a bottle was recently discovered on a beach in Alaska.

Image: Volodymyr Zelensky and Donald Trump (Credit: Ukraine Presidential Press Service via EPA)

As the 2020 presidential campaign in America heats up, evangelical Christians will be getting more and more attention in the US news media. They always do during election season as they have long been seen as reliable Republican voters. But people who identify as evangelical or born-again Christians are more than just a voting bloc. Evangelicals make up a huge swath of the US population and they are rapidly becoming more diverse than ever before.

(Jason Petty is shown on stage performing under his spoken word artist and rapper name, Propaganda. Credit: Matthew Bell/The World)