March on Brooklyn Bridge
Erik McGregor/Sipa USA
Over the past 50 years, protesters' voices have found power in unison. But activists and onlookers have increasingly been exposed to new sounds that aim to shatter rather than gather the crowd.
Protests don't simply turn violent because people have "nothing to lose". Police behaviour and group psychology also plays a part.
Protesters outside of a burning Minneapolis police precinct.
AP Photo/John Minchillo
Opinions about demonstrations are formed in large part by what people read or see in the media. This gives journalists a lot of power when it comes to driving the narrative.
Without reporters amplifying their message, Black Lives Matter protesters have to do the job themselves.
Justin Sullivan/Getty Images
From anti-war demonstrations to the latest women's march, 2020 is already shaping up to be a big year for protests in the US. Journalists will pick which messages get heard.
Pro-democracy protesters take part in massive rally to usher in the new year.
Isaac Lawrence/AFP via Getty Images
Fears that Beijing will renege on autonomy promises is only encouraging calls for independence from mainland China.
Police arrest a protester after Extinction Rebellion blocked the corner of Margaret and William Streets in Brisbane in August 2019.
Democracy is not perfect. Sometimes it produces policies that are undemocratic and unjust. In those cases, breaking the law may be justified.
Politicians routinely criticise young climate strikers as not making a difference. But the reality is quite different.
Conscripting young volunteers to combat climate change is not necessary. Australians aged 15-17 already have the highest rates of volunteering in the country.
Young LGBT Americans score higher on political engagement surveys.
LGBT Americans under 24 are more likely to volunteer, sign petitions and attend rallies and demonstrations.
Destiny Watford and other Baltimore youth leaders derailed plans to build a big incinerator in their neighborhood.
The Goldman Environmental Prize
Showing up at school board meetings might not sound as exciting as marching in the streets. But it can be an effective way to change things at the local level.
Hungarian Prime Minister Viktor Orban addresses supporters after the parliamentary election in Budapest, Hungary, April 8, 2018.
Hungarian Prime Minister Viktor Orban has transformed from a liberal into an authoritarian leader who uses the tools of democracy to attack civil society. Hungarians are protesting in the streets.
The Narrabri ‘Big Picture’ event in November 2015 brought together people from across the region in opposition to coal seam gas extraction..
While anger mobilises opposition to coal seam gas projects, it is also joy, especially the joy of social connection, that helps to sustain involvement.
The Atelier Populaire produced many of the iconic images of the student and worker movement that gripped France 50 years ago.
Almost 50 years ago, a white, non-American athlete supported Black athletes protesting racial injustice. Peter Norman paid a price for taking a stand. Canada's Sidney Crosby is no Peter Norman.
From Gezi Park in Istanbul to Wall Street in New York City, urban protest camps are shaking up the political establishment on an international scale.
The idea that violence is acceptable when levelled against tyranny is a core American belief.
Protestors at the University of California, Berkeley campus oppose the appearance of Breitbart News editor Milo Yiannopoulos.
AP Photo/Ben Margot
UC Berkeley had a duty to protect the free speech of right-wing provocateur Milo Yiannopoulos and those protesting his appearance. But what are the limits of free speech when it comes to campus safety?
Law enforcement officers move in to verify the identity of people in a field outside the Fort Lauderdale airport after a mass shooting.
New ways of expressing discontent are constantly emerging. Could mass shootings join what sociologist Charles Tilly has dubbed the 'repertoire of contention'?
Hundreds of thousands of Australians marched against the deployment of Australian troops to Iraq.
The late 1960s and 1970s saw powerful waves of dissent break out over Australia. It hasn't been the same since.
Are NSW citizens adequately engaged in the policymaking process?
Good governance is the right thing to do, and boosts the legitimacy of decision-making. If moral chivalry doesn't appeal, here are two more reasons: it's cost-efficient and delivers better solutions.
Online activism now means creating alternative ways to work, communicate and protest.