Sequoia
smog damaging pines, redwood seedlings
By
Tracie Cone
Publisher:
Mercury News
5/28/2012
Summary:
Humans
are quickly increasing air pollution every day, creating a thick layer of toxic
chemicals called smog. Even though this
smog is created ever so quickly, it is negatively affecting earth’s biggest and
oldest living thing. These things are the giant Sequoia redwoods, living in the
Sierra Nevada forest. This forest has the worst air pollution of any national
park in the country. As remote as the forest is, scientists are saying that the
ozone levels there are comparable to urban settings such as LA. Smog is so bad
that visitors and job applicants are warned of the unhealthy air quality. What
is damaging the trees are the high levels of ozone. The pine needles are
soaking up the ozone instead of carbon dioxide, which inhibits photosynthesis.
It also stresses young redwood seedlings, challenging them to survive. Not only
does the ozone stress trees, it stresses hikers. Breathing ozone at high levels
for even a short time can blister the lungs like UV rays blister skin.
Warnings
are given to hikers when the air quality is dangerous, which could affect the
parks profit and income. The only way to improve the air in the park is to
improve the San Joaquin air basin, which hopefully will happen very soon.
Opinion:
This
article completely saddened me because I remember in grade school studying the
Sequoia redwoods. Now that I know they are dying because of human actions, it
just makes me so angry. National parks are supposed to be areas in which pure
air is supposed to be present. And the Sierra Nevada forest’s smog may decrease
the amount of visitors, which decreases the amount of income. By this
happening, the forest will not be able to be maintained and could possibly get
even worse.The only way to solve this problem is to improve the air quality and
in order to do that we need to stop the pollution at the source. In this case
the sources are cars and factories. As we learned in class, renewable energies
could be used since not many greenhouse gases result from it. These trees are a
global treasure as the biggest and oldest things on earth. It would be devastating
to see them go extinct because our ignorance and lack of modification to our
energy sources. Therefore, change needs to happen now!
Questions:
1)
Do you think other national parks should be worried about their air qualities?
2) How does the forest being in the mountains worsen the smog (Hint: think thermal inversion)?
2) How does the forest being in the mountains worsen the smog (Hint: think thermal inversion)?
3)
If the redwood forest was to go extinct, how would it affect the rest of the
state of California? The country? The world?