Global tree-planting pledges promise far more than they can deliver — and may even create new problems for food, water, and ...

Walk down a crowded city street and you might marvel at its vibrancy—people brushing past each other, buildings packed like ...

In 2008, Pietro Perona , Caltech's Allen E. Puckett Professor of Electrical Engineering, was on sabbatical in Italy, enjoying a cappuccino in a ...

Photoshop tutorial showing how to make natural-looking sunbeams filtering through forest trees. Subscribe! subscribe ...

In "Mapmatics," a mathematician tells the stories of how math helps us track epidemics, map the seafloor, and plot a complex delivery route.

That's why restoration ecologists, like UC Santa Cruz Environmental Studies Professor Karen Holl, have been working to educate tree-planting organizations and the public about best practices for ...

We've all heard about counting the rings inside a tree trunk to discover its age. But there are other ways to determine a tree's age without chopping it down.

LEXINGTON, Ky. (WKYT) - Have you ever wondered where Lexington gets their showstopping Christmas tree every year? Well, it comes from one of you! “When we get the tree, cut it, and we put it right ...

Climbers flock to Joshua Tree from around the world to tackle the literally thousands of routes open to them. There are challenges for all ability levels, with more than 8,000 climbing routes, 2,000 ...

The White House press secretary fully embraced her boss’ habit of mathematically impossible bragging when she repeated President Donald Trump’s claim that his administration was forcing pharma ...

An estimated 10 nonillion (10 to the 31st power) individual viruses exist on our planet—enough to assign one to every star in the universe 100 million times over. Yet, most of the time, our species ...

Forest bathing emerged in Japan in the 1980s as a physiological and psychological exercise called shinrin-yoku, meaning “forest bathing” or “taking in the forest atmosphere.” Now this type of walking ...