Earth Day 50

Earth Day was first organized in 1970 to remember and appreciate the environment, and our responsibilities and roles within it. On April 22, 2020, we observe the 50th Earth Day, and though many improvements have been made, environmental challenges remain. In the past five decades, the population of the Earth has more than doubled—more than 75 percent of the people alive today were born after 1970—and the increased demand on our limited resources makes sustainable solutions even more important. Collected here are 31 images of our world from recent years, each a glimpse into some aspect of our environment, how it affects and sustains us, and how we affect it.

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  • Fernando Vergara / AP

    Photos: Deadly Protests Across Colombia

    For several days now, people across the country have voiced their anger in large demonstrations.

  • Alexander Nemenov / AFP / Getty

    Photos of the Week: Desert Highway, Launch Symphony, Mermaid Show

    A life-sized Gundam statue in China, the ongoing COVID-19 outbreak in India, the world’s longest pedestrian suspension bridge in Portugal, a Lego New York City, and much more

  • NASA’s Goddard Space Flight Center / SDO

    Scenes From Off-World

    A recent photo album of our solar system—a set of family portraits—as seen by our astronauts and mechanical emissaries

  • Dan Kitwood / Getty

    The Parakeets of London

    The Greater London area is home to thousands of parakeets, an invasive species that appears to be thriving in its new urban setting.