Next month marks the 50th anniversary of Earth Day. Those five decades have witnessed great leaps forward in protecting our planet and natural resources, but there's more work to be done.
Check out this timeline of some of the major milestones in environmental history, including important moments in sustainability at ASU.
Infographic created by Chad Musch and Jimena Garrison.Top image: ASU’s Polytechnic campus. Photo by FJ Gaylor.
More Environment and sustainability
![Mossi farmers in Burkina Faso](/sites/default/files/styles/block_image_16_9_med/public/2025-02/Depositphotos_40295569_L.jpg?itok=Te3KtB4j)
When resource competition leads to cooperation
The United Nations has estimated that in the past 60 years, more than 40% of all internal armed conflicts have a link to competition over natural resources. Climate change, population growth and…
![Fulton Schools Assistant Professor Dwarak Ravikumar, left, and Dileep Nakka, associate research technologist, right, review data in their joint research project with Yum! Brands on circular economy strategies to replace single-use cups with reusable cups. Photographer: Erika Gronek/ASU](/sites/default/files/styles/block_image_16_9_med/public/2025-02/SSEBE-Dwarak-Ravikumar-Yum-2025-EG-7091-a-1920X1080-16X9-hero-web.jpg?itok=c8slM-6j)
Single-use or reusable cups? New project seeks answers
Arizona State University researchers are collaborating with Yum! Brands on a joint research project to assess and better understand circular economy strategies that aim to replace single-use cups…
![Group of people standing on a stage holding a large novelty check.](/sites/default/files/styles/block_image_16_9_med/public/2025-02/SCSO-Awards-SCN.jpg?itok=3CMttx-l)
ASU Global Futures to lead Student Council Sustainability Officer Program
For over 11 years, through the Student Council Sustainability Officers Program, the city of Phoenix has engaged with students from their school districts to increase environmental stewardship.As…