This bonus edition is for paid subscribers only. Occasionally, we add a post to our One Step This Week editions in appreciation of your support of our work.

Add more fun to your years by celebrating our planet and its passengers as we circle our sun on our journey through the universe. Click on the underlined day to visit the day’s page on our website and add the event to your digital calendars. We’re collecting details about each celebration—if we haven’t yet explained your favorite environmental day of the year, let us know what makes it special for you!

January: For the Birds

February: Groundhogs and Bonobos

March: Frogs and Forests

April: Fools on Earth

May: Birds and Bees

June: Bicycles, Wind and Rain

July: Trees and Tigers

August: Lions and Elephants

September: Clean Air and Water

October: Food and Efficiency

November: Peace and Thanksgiving

December: Soil and Mountains