Thunberg’s climate activism began when she persuaded her parents to adopt lifestyle choices that reduced her family’s carbon footprint.

She protested outside the Swedish parliament where she called for stronger action on climate change by holding up a Skolstrejk för klimatet (School Strike for Climate) sign and handing out informational flyers.[3] After the election, Thunberg spoke in front of supporters, telling them to use phones to film her. She then said she would continue school striking for the climate every Friday until Sweden was in compliance with the Paris climate agreement.

Sweden signed the agreement and is on track with the Paris climate agreement from what I can tell.

After Thunberg addressed the 2018 United Nations Climate Change Conference, weekly climate strike protests took place on Fridays around the world. In 2019, coordinated multi-city protests involved over a million students each.

Thunberg’s rise to world fame made her an ad hoc leader in the climate activist community.

Thunberg’s influence on the world stage has been described by The Guardian and other media as the “Greta effect”

She has received honours and awards, including in Time’s 100 most influential people, named the youngest Time Person of the Year in 2019, inclusion in the Forbes list of The World’s 100 Most Powerful Women (2019),[19] and nominations for the Nobel Peace Prize.

Thunberg won a climate change essay competition held by Swedish newspaper Svenska Dagbladet. In part, she wrote: “I want to feel safe. How can I feel safe when I know we are in the greatest crisis in human history?”

In December, after Sweden’s 2018 general election, Thunberg continued to school strike – but only on Fridays. She inspired school students across the globe to take part in her Friday school strikes. In December alone, more than 20,000 students held strikes in at least 270 cities.

Thunberg’s speech during the plenary session of the 2018 United Nations Climate Change Conference (COP24) went viral.[67] She said that the world leaders present were “not mature enough to tell it like it is”.[68] In the first half of 2019, she joined various student protests around Europe, and was invited to speak at various forums and parliaments. At the January 2019 World Economic Forum, Thunberg gave a speech in which she declared: “Our house is on fire.”[69] She addressed the British, European and French parliaments; in the latter case several right-wing politicians boycotted her.[70][71] In a short meeting with Thunberg, Pope Francis thanked her and encouraged her to continue her activism.

While in New York, Thunberg was invited to give testimony in the US House Select Committee on the Climate Crisis on 18 September. Instead of testifying, she gave an eight-sentence statement and submitted the IPCC Special Report on Global Warming of 1.5 °C as evidence.

…made an official complaint against five nations that were not on track to meet the emission reduction targets they committed to in their Paris Agreement pledges: Argentina, Brazil, France, Germany, and Turkey.[83][84] The complaint challenged these countries under the Third Optional Protocol to the Convention on the Rights of the Child.

In late September 2019, Thunberg entered Canada where she participated in climate protests in Montreal, Edmonton and Vancouver, including leading a climate rally as part of the 27 September 2019 Global Climate Strike in Montreal.

Thunberg participated in climate protests in New York City with Alexandria Villaseñor and Xiye Bastida; in Washington, D.C., with Jerome Foster II; Iowa City; Los Angeles; Charlotte; Denver with Haven Coleman; and the Standing Rock Indian Reservation with Tokata Iron Eyes.

Thunberg arrived in the Port of Lisbon on 3 December 2019,[96][97] then travelled on to Madrid to speak at COP25 and to participate with the local Fridays for Future climate strikers.

On 30 December 2019, Thunberg was guest editor of the BBC Radio’s flagship current affairs programme…

On 21 January 2020, Thunberg returned to the World Economic Forum held in Davos, Switzerland, delivered two speeches, and participated in panel discussions hosted by The New York Times and the World Economic Forum. Thunberg used many of the themes contained in her previous speeches, but focused on one in particular: “Our house is still on fire.” Thunberg joked that she cannot complain about not being heard, saying: “I am being heard all the time.”

I’m not even halfway through the wikipedia article.

Before you jump in and say “well, she hasn’t actually done anything” let me ask you; What did Martin Luther King Jr. actually do?