No One Is Too Small to Make a Difference is a book by climate activist Greta Thunberg.

It consists of a collection of eleven speeches which she has written and presented about global warming and the climate crisis.

[1][2][3] Greta Thunberg has presented the speeches in front of the United Nations, the European Union, the World Economic Forum and during demonstrations and protests.

[1][4][5] One of her most famous speeches which appears in the book is "Our House Is on Fire".

[9] In November 2019, Thunberg was named author of the year by Waterstones for No One Is Too Small to Make a Difference.