Pik Botha played a central role in the intricate talks that eventually led to Namibia’s independence.
Pik Botha defended apartheid and South Africa's occupation of Namibia, but in the end helped end both.
Researchers release a balloon carrying instruments to measure ozone levels above Antarctica.
Almost 30 years ago the world responded to the realisation that our ozone layer was in trouble. The resulting Montreal Protocol was a rare example of global cooperation, but there's no room for complacency.
Headquarters of the US Department of Housing and Urban Development in Washington, DC.
Carol M. Highsmith/Library of Congress
An April 2017 survey explored Americans’ opinions about government intervention and welfare policies. It found that on average, they want more from their government, but are highly polarised.
A ‘no border wall’ sign is held during a rally to oppose the wall the US government wants to build.
AP Photo/Eric Gay
Conflicts about policing the border have erupted in much of the world. How people respond depends on the many distinct visions of what borders are meant to be protecting.
Employees at a gas station in Los Angeles watch President Jimmy Carter giving his energy speech over national television on July 15, 1979.
At at time of rising hatred and nationalism, Jimmy Carter's speech -- a sermon that cautioned against excess, offers a counterexample.
A date with destiny: Donald Trump and Anthony Kennedy.
EPA/Jim Lo Scalzo
In 1987, Anthony Kennedy was nominated to end a titanic Supreme Court fight. Could his putative successor trigger another one?
Rep. Dan Kildee, D-Mich., speaks about EPA Administrator Scott Pruitt and the state of the EPA during a protest on April 25, 2018, in Washington.
AP Photo/Alex Brandon
After two years of turmoil at the EPA in the 1980s, President Reagan hit the reset button, choosing a Republican who supported environmental protection to head the agency.
U.S. President Donald Trump, seen here in a February 2018 photo, has a beef with trade deficits. Yet running trade deficits with Asian countries has long spurred American spending and consumption.
(AP Photo/Evan Vucci)
Donald Trump's obsession with trade deficits, and his subsequent wielding of the tariff big guns, is the absolute wrong approach for the U.S. economy.
The French National Assembly, which is debating a law that would allow “fake news” to be banned in the pre-election period.
Richard Ying et Tangui Morlier/Wikimedia
France’s parliament is debating a law that would allow “fake news” to be censored. While the outcome is uncertain, the precedent is dangerous.
President Donald Trump with televangelist Rev. Pat Robertson.
AP Photo/Steve Helber
In recent years, Christian television has moved into news and politics. A scholar explains its impact on beliefs and on politics.
Sens. Bob Corker and Bob Menendez look on during the second round of questioning of Secretary of State-designate Mike Pompeo.
AP Photo/Alex Brandon
Senate confirmation for many of President Trump's nominees has been tough. In this speed read, The Conversation asks: What is Senate confirmation, and why do we do it?
For decades, each party simply used a combination of red, white and blue.
While it might seem like a longstanding tradition, it's a relatively recent phenomenon in the U.S.
Time to talk: Kim and Trump.
KCNA / Justin Lane/EPA
The goal of the summit should not be the nuclear disarmament of North Korea.
Trump has made pushing protectionism since the campaign.
AP Photo/Chris Carlson
The idea that the US is historically a free trading country is a myth. Here's why that's a good thing.
The Junkyard Band.
In 1985 The Junkyard Band shifted the paradigm by challenging Reaganomics. Many of those same key issues still rage on today, across the world.
Onlookers watch missiles launch in the 1983 made-for-TV film ‘The Day After.’
ABC Circle Films
In 1983, a made-for-TV film about the consequences of nuclear war was watched by 100 million people – and became a cultural lightning rod.
Historians, commentators and thinkers have written endless books on how the US presidency works. None of them applies to the incumbent, Donald Trump.
NFL players from many teams have knelt or linked arms in protest during the playing of the national anthem.
Donald Trump’s ill-timed comments on protests by America's elite athletes have given legitimacy to claims of his racial animus.
In this photo from Sept. 11, 2001, firefighters work in the ruins of the World Trade Center towers in New York City after an al-Qaida terrorist attack.
(AP Photo/Mark Lennihan)
It's been 16 years since the terrorist attacks of Sept. 11, 2001. Understanding what propelled al-Qaida's attacks could help guard against further violence.
U.S. President Donald Trump stands with Liberty University President Jerry Falwell Jr. after delivering keynote address at commencement in Lynchburg, Virginia, May 13, 2017.
Falwell Sr. was a pastor who founded the Moral Majority, a conservative Christian political lobbying group. He changed the way American Christians think about their faith and politics.