Author Archives: Robert I. Ellison

Are we to let people starve while the powerful grow bioenergy and restore forests for their tranquility?

“To build a better world, we must have the courage to make a new start. We must clear away the obstacles with which human folly has recently encumbered our path and release the creative energy of individuals. We must create … Continue reading

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Economics, Environment and Energy

The current average retail price of electricity in the US is $12/MWh.  Our prices are twice that. The increase in the retail price as a result of 80% renewables (in the US) is some $30/MWh.  This is an academic exercise … Continue reading

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100% renewables by 2030 and no Adani mine? Groan.

Australia committed in Paris in 2015 to a 26% reduction on 2005 in CO2 equivalent emissions by 2030.  The Labor Party has an election platform of 43% reduction.  The Liberals have a holistic policy including a safeguard mechanism as plan … Continue reading

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Small modular nuclear reactor promise? SMR prospects are good!

Factory made, dropped into a bunker or a mine, run uninterrupted for 20 or 30 years using leftover ‘nuclear waste’ – of which there is enough for hundreds of years of energy supply.   And then recycle the fuel core to … Continue reading

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Australia’s Paris Emission Targets

“With energy efficiency as its cornerstone and needing its pace redoubled, climate protection depends critically on seeing and deploying the entire efficiency resource. This requires focusing less on individual technologies than on whole systems (buildings,factories, vehicles, and the larger systems embedding them), and … Continue reading

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Tremendous energy cascading through powerful Earth sub-systems

To understand the multiply coupled Earth system requires tracing the flow of energy through the relevant physical mechanisms.  Over decadal to millennial scales much climate variability emerges from polar regions in changing patterns of meridional (north/south) and zonal (east/west) wind … Continue reading

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Stocks and flows in the Earth system

Stocks and flows exist at the cellular to planetary scales.  Stocks are an accumulation of some sort.  It may be water, heat or biological.  Water, heat and populations ebb and flow.   Mass and energy are conserved.  Water and heat can … Continue reading

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