Reference Blog Entries

The Science behind the Colors of Fall

Laura's picture

Autumn is here and the leaves on the trees in Central Ohio are beginning to change color and fall to the ground. It is a ritual we look forward to, but take for granted, every year.

But just what mystery causes this yearly display that we enjoy so much?  We know that shorter days, and cooler nights stop a tree from producing the green pigment in leaves.  The fall colors of red, yellow and orange remain.  Recent research has shown that the type of soil a tree is growing in also has an effect. 

Scientists at Princeton University are studying the effect of long-term climate trends on leaves.According to researchers,  leaves will start changing color later than usual, and the vivid colors of fall will last longer than usual in coming years. 

These and other articles explaining what makes leaves change color, what factors produce the most vivid fall colors and what makes leaves of deciduous trees drop off each year at this time may be found in the library’s science databases.  Take a look at the science and then go outside and enjoy the splendid display.

Icon for Facts on File Science Online Icon for Gale Science in Context Logo for National Geographic Virtual Library Icon for Science Reference Center Icon for Access Science

Looking for Literary Criticism?

Megan's picture

Artemis logo imageThe Upper Arlington Public Library subscribes to a fantastic resource on literature: Artemis Literary Sources. Artemis includes digitized copies of many well-regarded Gale titles, such as:

  • Twentieth Century Literary Criticism
  • Contemporary Literary Criticism
  • Novels for Students
  • Short Story Criticism
  • Short Stories for Students

Artemis also has reviews, work overviews, author biographies, and, for older works, the primary source. To access Artemis from home:

  1. Go to
  2. Select “Research” and click on “Databases”
  3. Scroll down to “Artemis Literary Sources” and click on it
  4. Enter your library card number and PIN

The UAPL is also lucky enough to have CLC and TCLC in print, if you want to do your research the old fashioned way!