Greta Thunberg was only fifteen years old when she started School Strike for Climate in Sweden. Today, she leads a global opposition to climate change. Activist Wangari Maathai promoted the planting of 51 million trees in her native Kenya. Read about the bravery and courage of these and more women who have taken a stand against exploitation, poverty, and environmental destruction. They range from missionaries, academics, and writers to figureheads who keep their campaigns in the public eye and on the political agenda. This book tells their stories and describes their vital contributions.