Woodland - Spring 2013 - (Page 6)
on the ground
© bob KeeFeR/SHUTTeRSToCK.Com
by amanda cooke
up in smoke?
9,211,281: That’s the number of acres burned by wildland fire last year, the
third worst fire season by acreage in the past 52 years.
According to new National Aeronautics and Space Administration (NASA)
research, extreme fire years like 2012 will likely begin to occur two to four
times per decade by 2050.
“2012 was a very dry year. The dryness is associated with turning forests
and grasslands into a flammable mixture of dead materials,” said NASA
scientist Doug Morton.
“Climate models project an increase in fire risk across the U.S. by 2050,
based on a trend toward drier conditions that favor fire activity and an
increase in the frequency of extreme events,” Morton said.
Carbon dioxide emissions from wildfires in the western United States
have more than doubled since the 1980s. NASA’s newest predictions for
both low- and high-greenhouse-gas-emissions scenarios indicate longer
and stronger fire seasons across all regions of the country during the next
Morton presented burned-area estimates produced from observations
by NASA’s Aqua and Terra satellites at the American Geophysical Union’s
annual meeting in December.
medicine’s new needles
Sources: NASA.gov and the National Interagency Fire Center
9,211,281 LAST YEAR
© eVgeNY DUbINCHUK/SHUTTeRSToCK.Com
Bacterial infection at the site of
implanted medical devices and
prosthetics continues to irk
doctors and chemists alike.
New research suggests
that Douglas-fir needles could
be the key to solving this
Chemists at India’s Motilal
Nehru National Institute of
Technology are developing an
material derived from the
tree’s needles, which could be
used to coat medical devices
to prevent infection.
The researchers have used
an extract from Douglas-fir
together with silver nitrate
solution to generate antimicrobial nanoparticles destined to
coat materials used in medicine.
When the Christmas trees
begin to appear next holiday
season, perhaps you’ll have
a different view of Douglasfir needles.
6 woodland • Spring 2013
Table of Contents for the Digital Edition of Woodland - Spring 2013
Woodland - Spring 2013
On the Ground
Faith and Forestry
Take a Hike!
Tools and Resources
Forests and Families
Woodland - Spring 2013