Legendary British naturalist and broadcaster Sir David Attenborough celebrated his 100th birthday on Friday.

Over more than seven decades, Attenborough has showcased the magnificence and fragility of the natural world to global audiences through landmark documentaries such as Blue Planet and Planet Earth. His environmental advocacy has shaped generations’ understanding of climate change.

Media outlets, scientists, and environmental organizations worldwide have paid tribute, hailing him as “the greatest nature storyteller on Earth.”