She’s now giving speeches to politicians, to the EU parliament, the UK parliament, to protesters and more. She has also appeared in documentaries and has loads of books and articles written about her.

She’s even been nominated for a Nobel Peace Prize! Thanks Greta!

Wangari Maathai was a Kenyan environmentalist and the founder of the Green Belt Movement, which focused on tree planting, environmental conservation, and women's rights. In 2004, she became the first African woman to receive the Nobel Peace Prize for her efforts in sustainable development, democracy, and peace. Maathai's work led to the planting of millions of trees across Africa.

Known as the father of the climate change economy, he received the Nobel Prize in 2018 for his climate and economic models, designed to consider the potentially catastrophic impact of climate change on the economy. He has been working in this area for decades, publishing his first work on the subject in 1994, entitled, Managing the Global Commons: The Economics of Climate Change, which he followed with others, like Warming the World: Economic Models of Global Warming (2000) and A Question of Balance: Weighing the Options on Global Warming Policies (2008).

Federica Gasbarro is a famous biologist and environmental activist from Italy. People call her "the Italian Greta Thunberg." She works hard to protect our planet, which is our only home.

Federica was born in 1995. She spoke at the big Climate Summit in 2019.

Federica writes books about taking care of the environment. She also teaches and gives advice to companies. She fights for women's rights in science and technology, where there are still more men than women. Since she was young, Federica has worked to help people live in a way that is good for the Earth. She explains why climate change happens and how it affects our lives and the world's ecosystems.