In modern times human presence has influenced the size and number of wildfires on the Colorado Plateau. We are, in part, responsible for more big fires and fewer small ones. But is there also a connection between ancient peoples and wildfire?
The colorful red rock geology of Sedona looks timeless. But, the complicated topography hides layers of rock that aren't as solid as they appear. And that might - in some places - even pose a threat to humans.
Drought is a universally understood phenomenon — especially here in the arid Southwest. But what does drought really mean? To help define the term, and the concept, scientists use several commonly used drought indices. Each summarizes thousands of data points on rainfall and other information into a single handy number.
In late September, the Intergovernmental Panel on Climate Change released its Summary for Policymakers for part-one of its massive Fifth Assessment Report. Its message? Earth's climate is warming, and human influence on that warming is clear.
When you hear the word "bee", you're likely to think of the hard-working insects that produce the honey we use. But in North American, a wild diversity of native bees - more than 4,000 kinds - swamps that of honeybees, which were imported from the Old World.
It's been 3 years since the Schultz Fire seared more than 15,000 acres on the San Francisco Peaks north of Flagstaff. About 2/3 of that area, mostly ponderosa pine and mixed conifer forest, was moderately to severely burned. But native plant species have been helping to restore the area.