Earth Day was founded by US Senator Gaylord Nelson from which state?

Earth Day, celebrated annually on April 22, was founded by US Senator Gaylord Nelson from Wisconsin. This event was established in 1970 as a way to promote environmental awareness and encourage people to take action toward protecting the planet. Senator Nelson's inspiration came from the massive anti-war protests of the 1960s, which demonstrated the power of grassroots activism. By leveraging this momentum, he aimed to bring environmental issues to the forefront of public consciousness. Wisconsin's significance in this context is highlighted by Nelson's efforts to engage citizens across the nation in environmental advocacy, ultimately leading to the establishment of Earth Day as a global event. The other states mentioned do not have any historical connection to the founding of Earth Day, making Wisconsin the correct answer.