These two engines, running on powerful hydrocarbon fuels, feed and mobilise our world. The transformation is remarkable. Just 3-4 generations ago, a team of up to twenty bullocks took days or weeks to haul a wagon-load of wool bales, forest logs or bagged wheat to markets, and the bullocks needed fresh supplies of feed and water every night. In 1896, Henry Lawson described it well in two stanzas from his great Australian poem "The Teams":
A cloud of dust on the long white road,
And the teams go creeping on Inch by inch with the weary load;
And by the power of the green-hide goad The distant goal is won.
But the rains are heavy on roads like these;
And, fronting his lonely home,
For weeks together the settler sees
The teams bogged down to the axle-trees,
Or ploughing the sodden loam.
Cattle and sheep to feed the cities were moved by drovers who spent weeks or even months on the road. Today one diesel-powered road train or semi-trailer can carry its own fuel and water plus a load of livestock to the distant cities in a day or so. Refrigerated trucks do even better – swiftly carrying dressed sides of meat from the abattoir direct to butcher shops.
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The seventh step in the human quest for additional energy was the harnessing of atomic energy for generating electricity, fuelling naval vessels, in medical procedures and creating even more powerful explosive devices.
As mankind was ascending the seven steps of the energy ladder from the stone-age to the nuclear age, governments were also expanding their scope, power and cost.
Mankind has always had tribal leaders, but when farming developed, leaders or powerful land-owners discovered that other farmers and their fixed assets could easily be taxed to pay for their own "protection". This encouraged the development of central governments with their officials, tax collectors, police and soldiers. To defend their generally increasing appetite for tax revenue, governments needed a continual supply of real or imagined dangers to justify their taxes. From this point on, government power has increased with each real or invented community crisis – from village control, to district, state, federal and continental governments. The latest such "crisis" concerns "global warming" or "the climate crisis", which is being milked to promote global carbon taxes and global government.
Nothing stands still on planet Earth. Since the dawn of time, Earth has seen continual geological and climatic change – shifting continents, rising and falling sea levels, volcanos and tsunamis, droughts and floods, migrations and extinctions, hurricanes and heat waves, ice ages and warm eras.
Humans flourished in the warm eras and suffered in the cold dry eras. Access to abundant, reliable energy enables man to survive these and the future climate challenges which are sure to come.
Today's massive global human population owes its existence, prosperity and comfort to our economical and reliable energy supplies, particularly the hydrocarbon fuels – oil, coal, and gas. The world supports more people with fewer famines; and those with access to abundant reliable energy supplies have stabilised their populations and contribute most to caring for nature, culture and the poor. And the carbon dioxide recycled by the usage of hydrocarbon fuels is greening the world and adding to food supplies as native and farmed plants flourish in the warm, moist, carbon-rich atmosphere.
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This long history of energy progress is now under threat from strong forces using any environmental alarm to deny human access to efficient energy. Using every sensational scare that can be whipped up, they tax, oppose, hamper or restrict farming, forestry, fishing, grazing, mining, exploration, hydro-carbon fuels, steam engines, combustion engines and nuclear power. The "zero-emissions" zealots want us to step backwards down the energy ladder to the days of human, animal and solar power. They have yet to explain how our massive fleet of planes, trains, tractors, harvesters, trucks, road trains, container-ships and submarines will run on windmills, treadmills, windlasses, solar energy, and water wheels.
But their energy-destroying policies will reduce global prosperity and population back towards levels prevailing in those times. Some see that as a desirable goal.
These green zealots are the real deniers – the energy deniers.