Triple Play Upslope

Three days ago, as I headed west across Kansas, high pressure over the Southern Plains swept heat and humidity northward.  In concert, a low...

05:39

The Nature of Ebola

Ebola is a filamentous, RNA virus; of the five known species, four cause disease in humans.  Fruit bats appear to be the natural host (carri...

05:53

Harnessing the Wind in Colorado

Returning to Colorado yesterday, I was pleased to see that the new wind farm section, north of I-70 between Genoa and Arriba, has progressed...

08:21

A Hundred Years of War

One hundred years ago today, World War I began; though far from the first war in human history, it might be viewed as the beginning of moder...

13:19

Missouri's Pinnacles

Silver Fork Creek rises on the Glaciated Plain of north-central Missouri, a few miles southwest of Centralia; snaking southwestward, this st...

05:02

The Vanguard of Autumn

A few weeks after the summer solstice, some shorebird species begin to depart their Arctic breeding grounds.  Over the following weeks and m...

04:41

Weather from Above

While perusing Sitka Nature , I learned of the website Earth , which provides an animated global image of surface wind patterns over which o...

05:17

The Dead of Summer

We humans, tropical beings that we are, often refer to "the dead of winter," when frigid air and bitter winds seem to bring life t...

04:44

The Nature of Ukraine

A series of tragic events have kept Ukraine in the news over the past year.  It thus seems appropriate to balance this image with a look at ...

05:20

Reducing Personal Consumption

Those of us who care about the welfare of natural ecosystems lend our support in a number of ways.  Most donate funds to local or national c...

12:27

The Fallibility of Science

Those who attempt to derail science, for whatever reason, point to its long history of false conclusions.  The scientific method, after all,...

19:25

Maine Osprey Video - Fishing 2014

Here are a couple of quick video clips of an osprey fishing, and then a handful of still images of osprey flying, splashing and carrying fis...

14:27

Lawns & Water

Finding themselves in the midst of a prolonged, severe drought, it was heartening to learn that California water authorities had the fortitu...

05:09

Front Range Geology

During the Cretaceous Period, 135 to 65 million years ago (MYA), a shallow sea stretched from the Texas Gulf Coast to British Columbia, cove...

05:05

Autumn in July

An atmospheric trough, produced by a dip in the jet stream, has ushered cool, dry Canadian air into the American Heartland; overnight lows h...

05:08

America's Greatest Health Problem

What is the greatest health problem in the U.S.?  If you watch television you might conclude that it is erectile dysfunction, testosterone d...

05:45

Mississippi Kites over Columbia

For the past several days, a pair of Mississippi kites have appeared above our neighborhood in Columbia, Missouri.  Generally present during...

04:44

American Lotus

Hiking around a lake south of Columbia, my wife and I found that the circular leaves and pale yellow flowers of American lotus had taken ove...

06:00

First Annual Cicadas

As warm, muggy air pushed back into Missouri, I heard the first annual cicadas in our shade trees last evening.  After several years undergr...

05:17

Our Crustacean Farm

Three months ago, we established a compost pile in our Columbia, Missouri, yard (see Building a Compost Bin ).  Since that time, the grass c...

09:10

Our Evening Pewee

On the past few evenings, an eastern wood pewee has appeared in our central Missouri yard, drawn to a dead snag on an aging tuliptree.  This...

05:23

At Nature's Mercy

Arriving back in Columbia Monday evening, we found ourselves enveloped in soupy, tropical air; it seemed we had taken a wrong turn on our wa...

07:05

Eagle In Action While Hunting Fish

After a long time search we have got few beautiful shots of bird, which is in action mode, these are gorgeous shots of this bird which is in...

17:33

Maryland Osprey 2014

Maryland Osprey Mom and Chick... This is my favorite nest/pair.  They are so used to people being around due to the high traffic, but it is ...

20:12

Geology of Rio's Domes

Watching coverage of the World Cup, one is struck by the spectacular natural setting of Rio de Janeiro, Brazil, hemmed in and partly bisecte...

14:32

The Peaceful Nature of Doves

Throughout recorded human history, doves have often been chosen as images of peace.  After all, most doves are mild-mannered birds that avoi...

06:09

Happy Birthday America! The above photo was shot from below the Carillon , to the south of the Iwo Jima Memorial in Virginia. He...

19:01

Arthur and the Trough

Last evening, as Tropical Storm Arthur churned off the east coast of Florida, a broad dip in the jet stream, known as an atmospheric trough,...

06:02

Floating the South Platte

Among the wide variety of outdoor activities that are available in and near Metro Denver is the opportunity to float the South Platte River....

09:02