Icebergs only glow blue when they come from very old ice originating deep within glaciers. Eons of compression eliminate most reflective surfaces. As a result, most wavelengths of light are absorbed. Blue wavelengths, however, penetrate deep enough to find internal surfaces and reflect outward. Photographed at Tracy's Arm, Alaska.
Sunrise in the southern unit of Badlands National Park, South Dakota. Shot during an assignment for the WWF with Day's Edge Productions.
Senecio trees, endemic tussock grasses, and everlasting flowers cover the muddy banks of Bujuku Lake, in the Rwenzori Mountains. Shot during our expedition to film Snows of the Nile.
The canopy of a Costa Rican Rainforest photographed at La Selva Biological Station. This images was photographed during a science filmmaking workshop that I taught with Neil Losin to graduate students in the OTS Tropical Biology course.
On assignment for the World Wildlife Fund in the Pine Ridge Reservation in South Dakota, Neil and I ran head-on into a massive electrical storm. Before the rain caught up with us, we captured a few images of the lightning, including this one.
Badlands at sunset. Photographed on assignment for the WWF on the Pine Ridge Indian Reservation, South Dakota.
A panorama of the Great Sand Dunes National Monument in Southern Colorado. In the background are the Sangre del Christo Mountains.
Two boys cliff jump into the Ouzoud Waterfalls, located int eh Grand Atlas village of Tanaghmeilt, in the province of Azilal, Morocco.
The Key Biscayne Lighthouse, originally completed in 1847, still stands tall among palm trees in 2012. Photographed on Key Biscayne, Florida.
The sun sets over the Monte Verde Cloud Forest. Photographed near Santa Elena, Costa Rica.
Giant lobelias (Lobelia bequaertii) clutter a bog near the Guy Yeoman Hut. The flowers of these plants can reach more than four meters tall. It can take decades for the plant to flower. After the plant flowers, it dies. Photographed while on expedition to film Snows of the Nile in Rwenzori National Park, Uganda.
High elevation senecio forests (Dendrosenecio adnivalis), in Rwenzori National Park, Uganda.
Senicio trees, lobelia, Carex grasses in the mist above the Bujuku Valley. Rwenzori National Park, Uganda.
The intertidal zone at summer near Juneau, Alaska.
Ferns and evergreens dominate the understory in this Alaskan Rainforest. Photographed near Juneau, Alaska.
A humpback whale emerges on a foggy day near Juneau, Alaska.
It's almost as if the trees themselves created the myst in a forest valley near Juneau, Alaska.
A rare foggy morning on Formentera, Spain. By 7am, the summer heat arrives, and the fog vanishes.