Bonnie Stevens

Brain Food - Reporter/Host

The Arctic and Antarctic are the only places on Earth where permafrost is found. some scientists believe this frozen ground is disappearing because of climate change. Ted Schuur is an ecosystem ecologist with the Center for Ecosystems Science and Society.

PAGES Past Global Changes

The key to understanding recent climate changes could be at the bottom of Arctic lakes. That's what Darrell Kaufman believes. He's a paleoclimatologist at Northern Arizona University and studies core sediment samples of Arctic mud to get a glimpse of thousands of years of environmental changes.

KNAU/Bonnie Stevens

Some people collect stamps, others collect baseball cards. Neil Cobb collects dead bugs...250,000 of them and counting. Cobb is the director of the Merriam Powell Center for Environmental Research at Northern Arizona University, and he's compiling his collection of hissing cockroaches, tarantulas and other bugs into a massive electronic insect library.

Soft ticks are arachnids, like spiders. They live in pine and hardwood forests and thrive on the blood of mice, squirrels, chipmunks and sometimes birds. They don’t usually feed on humans, but, as in the case that closed Camp Colton near Flagstaff recently, it does happen once in awhile. Northern Arizona University Forest Entomology Professor Rich Hofstetter explains.

A program at Northern Arizona University encourages students to use their own life experiences to develop community projects. Students with NAU’s Campus and Community Based Action Research Teams are digging deep within themselves to recall significant events, even painful ones like domestic violence or abuse, and use them to connect with the community. Lauren Berutich is the program coordinator.