Rachel Carson was born in 1907 in Springdale, Pennsylvania. Carson was a passionate scientist and ecologist, writing about the environment. Her most famous book, Silent Spring, was published in 1962 - two years before her death. The book emphasises the need to preserve our world. It also presented her theory about the environmental consequences of pesticide misuse - particularly DDT, a pesticide used to kill mosquitoes. To discuss this further, I’m joined by historian Linda Lear. She wrote “Rachel Carson: Witness for Nature”, a biography about Carson and her work.