World Earth Day 2025 will be observed globally on Tuesday, April 22. Since its origin in 1970, Earth Day has become a massive global movement advocating environmental awareness and action. This year’s theme, “Our Power, Our Planet,” emphasizes collective responsibility to combat climate change and promote sustainability.

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• Date: April 22, 2025 – Earth Day observed worldwide
• Theme 2025: “Our Power, Our Planet”
• Focus: Global collective responsibility for climate action
• Started in 1970 by US Senator Gaylord Nelson
• Inspired by 1969 Santa Barbara oil spill and public concern
• First event saw 20+ million Americans participate
• Led to EPA formation, Clean Air and Water Acts
• Over 1 billion people across 192 countries now participate
• Promotes renewable energy and sustainable living
• Encourages policy reforms and community clean-up drives