Drought, heat kill Arizona 'sky islands'

March 28, 2007

Arizona's "sky islands," mountainside oases that provide a cool lush retreat from the desert, are falling victim to higher temperatures and a long drought.

Debbie Fagan told The New York Times that she settled in Summerhaven near Tucson 25 years ago after a country-wide search for the perfect place.

"Nature is confused," Fagan said. "We used to have four seasons. Now we have two. I love this place dearly, and this is very hard for me to watch."

In 2003 and 2004, wildfires devastated thousands of acres. The trees were first weakened by high temperatures, and then hit by insects with fire finishing the job.

Scientists say that the devastation of the "sky islands" suggests that the combination of record warmth and drought is not just a normal climate swing.

"A lot of people think climate change and the ecological repercussions are 50 years away," said Thomas Swetnam, head of the Laboratory of Tree-Ring Research at the University of Arizona in Tucson. "But it's happening now in the West. The data is telling us that we are in the middle of one of the first big indicators of climate change impacts in the continental United States."

Copyright 2007 by United Press International

Explore further: Cloudy nights, sunny days on distant hot Jupiters

Related Stories

Cloudy nights, sunny days on distant hot Jupiters

October 18, 2016

The weather forecast for faraway, blistering planets called "hot Jupiters" might go something like this: Cloudy nights and sunny days, with a high of 2,400 degrees Fahrenheit (about 1,300 degrees Celsius, or 1,600 Kelvin).

How climate change will affect western groundwater

February 17, 2016

By 2050 climate change will increase the groundwater deficit even more for four economically important aquifers in the western U.S., reports a University of Arizona-led team of scientists.

Recommended for you

New studies take a second look at coral bleaching culprit

December 7, 2016

Scientists have called superoxide out as the main culprit behind coral bleaching: The idea is that as this toxin build up inside coral cells, the corals fight back by ejecting the tiny energy- and color-producing algae living ...

Cosmic dust found in city rooftop gutters

December 7, 2016

(Phys.org)—A small team of researchers with Imperial College London, the Natural History Museum in London, Project Stardust in Norway and Université Libre de Bruxelles in Belgium, has found samples of cosmic dust in the ...

0 comments

Please sign in to add a comment. Registration is free, and takes less than a minute. Read more

Click here to reset your password.
Sign in to get notified via email when new comments are made.