Other topics he has photographed are tropical deforestation in Brazil, Indonesia, and the Democratic Republic of the Congo and global warming in the Arctic, Patagonia and the Southern Ocean.
[3] Beltrá started his career with photos of bombings by the Basque separatist organization Euskadi Ta Askatasuna (ETA) while he was a student at the Complutense University of Madrid.
[6] Beltrá has presented his work in slideshows and lectures at galleries and conferences across North America, including the 9th World Wilderness Congress,[7] the Annenberg Space for Photography,[8] the Aquarium of the Pacific,[9] and the ABC Continuity Forum.
His ability to communicate complex environmental issues through visual storytelling has made his work a case study in the power of images to drive public awareness and policy change.
The exhibition was widely praised for its emotional depth and artistic innovation, solidifying Beltrá's legacy as one of the most important environmental photographers of his generation.