Clean Coal by Wire
By Viv Forbes,
Chairman, The Carbon Sense Coalition
There is a persistent
green myth that coal-fired power generation causes city smogs. It does not.
City air pollution is
nothing new. King Edward I complained about London pollution in 1306, as did
Queen Elizabeth I in 1578, long before the first steam engine operated.
Let’s look at the causes of
some famous smogs – London/Pittsburgh, Los Angeles/Santiago, the Dust Bowls and
the Asian Smogs.
The London smogs were
caused by open-air combustion of newspapers, wood and cheap high-sulphur
unwashed coal in domestic fires, stoves and boilers; by coal-burning
blacksmiths, brewers and ironworkers in smoky forges, furnaces and coke plants;
and by many smoky steam locomotives; all with inefficient combustion and no
pollution controls. The smog was slowly eliminated by clean air regulations and
by changing to “clean coal by pipe” (town gas) and “clean coal by wire”
(electricity).
The Los Angeles smogs were
caused mainly by backyard incinerators, vehicle exhausts and natural air
inversions. They were reduced by using cleaner fuels, better engines and
compulsory pollution-control equipment. Santiago has undergone a similar
clean-up.
The Dust Bowl conditions of
the Great Plains in USA were caused by drought and wind erosion of newly
cultivated soils. Gobi Desert storms produced the Yellow River and the Yellow
Sea and contribute to the Asian Brown Cloud today.
Today’s Asian smogs have
many sources –
- forest fires in Indonesia; open air cremations in India;
- dust from volcanic eruptions and desert storms;
- soot, ash and other pollutants from millions of domestic rubbish fires, mosquito fires, cooking fires and heaters using anything combustible – cow dung, wood, paper, cardboard, plastic or cheap unwashed coal; and
- soot and unburnt hydro-carbons from millions of vehicles, many with engines needing maintenance and no pollution controls.
- Soot, smoke, ash and SOX and NOX pollutants from old boilers, smelters and furnaces using dirty coal without modern pollution control equipment.
Beijing today combines the
1950’s problems of both London and Los Angeles.
The Asian smog is NOT
caused by producing electricity in modern power stations with closed boilers,
pollution controls and using high-quality washed coal such as exported by
Australia to Asia. The “power station pollution” pictured so eagerly in ABC and
Green propaganda is actually steam from the cooling towers.
The main products released
by modern coal-fired power stations are water vapour and carbon dioxide – both
are essential life supporters. Neither one is toxic, polluting or dangerous,
and carbon dioxide is invisible. Both make our climate more liveable, but the
contribution of carbon dioxide to climate is tiny. And the extra carbon dioxide
produced by burning coal has done more to encourage the growth of plants and
the greening of planet Earth than Greenpeace will ever do.
“Clean coal by wire” into
every home is the one thing that could solve much of the Asian air pollution.
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