2025 Earth Day Theme. This year’s focus is on uniting our global community—one billion. Restoring our earth is the theme of the nation that acknowledges how climate change has degraded our natural system, leading to the emergence of novel and fatal diseases as well as a crackdown on the world’s economy.

2025 marks the 55th anniversary of earth day, and to honor this milestone, we are inviting our one billion supporters in 192 countries to unite behind renewable energy, with. Join the global movement by.