In the middle of the exhibit hall at the University of Arizona’s Laboratory of Tree-Ring Research stands a 4,000-pound sample of a Giant Sequoia that began its growth in 212 A.D. and fell in 1915. The ...

Trees transform our villages, workplaces, and homes, making them more vibrant and inviting. Each tree has a story to tell, deeply rooted in the community it embodies. Today, I want to highlight the ...

Attribution researches the influence of climate change on local weather and impacts. We issues alerts in many instances when the Climate Shift Index identifies a notable extreme weather event around ...

The Bannister Building looks distinct among the typical red-brick buildings on campus, yet students walking by, preoccupied by their phones and classes, fail to notice the 40-foot-long steel columns ...

Play NOVA's Evolution Lab to explore the tree of life and become an expert in phylogenetics—the study of the evolutionary relationships among species. Receive emails about upcoming NOVA programs and ...