4 REASONS THE WORLD IS HOOKED ON COAL
Black –you don’t know the meaning of the word until you’ve
been down a mine shaft,” yells my friend Nat over the noise of machinery.
Gazing at the yawning hole in front me, I start to wonder if I really want to
find out what Nat means.
[1] STEEL PRODUCTION
Over 70 percent of the steel produced worldwide is processed
by coal-burning blast furnaces. In addition, the makers of bricks, tiles,
cement, plastics, dyes, and explosives use chemicals derived from coal.
[2] POWER PRODUCTION
By far the biggest consumer of coal, however, is the power
industry. Australia generates 84 percent of its electric energy from coal-fired
power plants. In China, South Africa, and Denmark, approximately three quarters
of the electricity is generated from coal. The United States relies on coal for
over half of its electric power. Worldwide, more than a third of the electricity
produced comes from coal.
[3] DOMESTIC APPLIANCES
To put it another way, if you own an electric stove, you
consume approximately half a ton of coal a year. Two tons of coal will power
your electric water heater for the same period, and your electric refrigerator
will devour a further half ton annually.
[4] MASSIVE RESERVE
Scientists estimate that one million million tons of coal
remain in the earth’s “cellar” –enough to last hundreds of years at the present
rate of consumption.
COAL’S FUTURE-A HOT ISSUE
COAL AND
POLLUTION: smoke and small particles from burning coal cause more than
50,000 new cases of chronic bronchitis a year in 11 of [China’s] large cities,
“states a united Nations Environment Programme report. The technology to remove
much of this pollution is available but is considered too expensive for many
power-starved countries to purchase.
COAL AND
CLIMATE CHANGE: The burning of coal already produces over two thousand
million tons of carbon dioxide gas each year. And coal is forecast to remain
the second-largest source of carbon emissions, at about 34 percent in 2020.
Many see these statistics as cause for alarm.
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