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AN UNSUPERVISED
SCIENCE
EXPERIMENT
wn” OL one
Do you Khow
what Your Kids

are doing today?

Smog and
Air Pollu

Special Science Supplement - Terrace Review

eas MUTANT

*Pg. 6 - Science everywhere

ePg. 2 — Local inventor,

Chris Morton, credited
«Pg. 3 — Discovery Boxes
ePg. 4 - Technology in Terrace

«Pg. 7 - Stephanie Wiebe,
"Let the judges decide"
*Pg, 8 - Science Fair previews

ePg. 5 - Physics Olympics

Can natural gas help?

Natural gas can be used to complement
or replace the use of coal or oil in factories
and electricity generating stations to
reduce sulphur dioxide and particulate
emissions.

Converting your car from gasoline to
natural gas can reduce reactive
hydrocarbon emissions by up to
40 per cent.

Can natural gas help? me
All combustion processes, including
that of natural gas, produce nitric oxide.
However, processed natural gas contains |
_ hosulphur and contributes less to acid
rain. As a result, the co-firing of coal or oil
with natural gas can cut emissions and
increase efficiency. Electric powerplants _
which combine natural gas and high- |
sulphur oil have cut their sulphur dioxide
emissions substantially. |

Can natural gas help? z

Natural gas combustion produces less _
carbon dioxide per unit ofenergythan =
coal or oil, and releases little nitrous oxide. .
While natural gas production does emit
methane, the amount released is small,
amounting to less than 2 per cent of total
world methane releases.

Substitution of natural gas for other
fossil fuels will help to alleviate the
problem of-global warming.

Natural |
The
Natural
Choice ©