Botanist Pablo Guerrero has been visiting Atacama cacti all his life. They’re not adapting well to a drier climate, booming mining and plant collection.
It opens up new avenues for research, not only in desolate regions like the Atacama Desert but also in other extreme environments such as Antarctic ice, deep-ocean vents, and arid regions worldwide.
Conservation efforts and climate finance in South America are too focused on iconic biodiversity hot spots, like the Amazon rainforest, at the peril of crucial desert, wetland and other ecosystems, ...
National Geographic's enterprising photographers have helped readers explore and learn about our beautiful world through their images for more than a century. Here is their best work from the past ...