Tag Archives: ethanol

Fill ‘er up with kelp?

Preface. Here are just a few of the dozens of reasons why seaweed can’t make a dent in energy supplies: A negative return on investment like corn ethanol No commercial biofuels are being made from it. Kelp is mainly used … Continue reading

Posted in Biomass, Energy, Peak Biofuels, Seaweed | Tagged , , , , , , , | Comments Off on Fill ‘er up with kelp?

Do you want to eat, drink, or fly?

Preface.  In this post the New York Times writes about renewable airplane fuel from corn ethanol, and questions whether there is enough water and a few other problems.  First I’m going to summarize their issues with this, and then follow … Continue reading

Posted in Airplanes, Biofuels, Biomass EROI, Groundwater, Peak Water | Tagged , , , , | Comments Off on Do you want to eat, drink, or fly?

Dust Bowl 2.0 – they’re coming back!

Preface. Two forms of soil erosion may bring back the Great Depression Dustbowls. The first is that Great Plains grasslands have been replaced with corn crops to grow ethanol, which have increased the amount of dust 100% over the past … Continue reading

Posted in Soil | Tagged , , , , , , , | Comments Off on Dust Bowl 2.0 – they’re coming back!

Corn for ethanol & soy for biodiesel tremendously destructive

In the news: Cullen A (2024) Corn Belt fertilizer is killing the Gulf of Mexico. Washington Post. About 30 percent of the nitrogen applied for raising corn is lost to water, and much of it right now is draining off … Continue reading

Posted in Biodiesel, Peak Food, Pesticides, Soil, Water Pollution | Tagged , , , , , , , | Comments Off on Corn for ethanol & soy for biodiesel tremendously destructive

Distribution – why it is so hard to add E15 or E85 at a gas station

Preface. One of the huge hurdles to shifting from oil to “something else” is the chicken-or-egg problem of no one buying a new-fuel vehicle with few places to get it, so few are made, so service stations don’t add the … Continue reading

Posted in Biofuels | Tagged , , | Comments Off on Distribution – why it is so hard to add E15 or E85 at a gas station

Book review of Underbug: an obsessive tale of termites and technology

Preface.  I read this book mainly to find out where “grassoline” stood. Scientists thought 10 years ago that we could recreate the termite biota system of digesting biomass to create biofuels.  But this appears to be far in the future … Continue reading

Posted in Agriculture, Wood | Tagged , , , | Comments Off on Book review of Underbug: an obsessive tale of termites and technology

Power density of biomass, wind, & solar take too much land to replace fossil fuels

Volumetric versus specific energy density for selected energy carriers. Source: Palmer, G. 2020. Energy storage & civilization: a systems approach. Springer. Preface. Vaclav Smil writes “The fact that wind, solar, and biomass have incredibly low energy density per square meter … Continue reading

Posted in Alternative Energy, Biomass, Coal, Hydropower, Natural Gas, Oil | Tagged , , , , , , , | 1 Comment

Peak soil: Industrial agriculture destroys ecosystems and civilizations: Biofuels make it worse

Preface. In 2018 I thought it was time to reorganize this post, as it grew more and more bloated and disorganized with new information. Eventually it turned into my 2021 book Life After Fossil Fuels: A Reality Check on Alternative … Continue reading

Posted in Alternative Energy, Biofuels, Biomass, Energy, Peak Biofuels, Peak Topsoil, Soil | Tagged , , , , , , , , , , , , | 2 Comments

No, we’re not going to make ethanol out of CO2 and stop global warming

Preface.  In the article below Robert Rapier debunks the research paper proposing to convert CO2 into ethanol.  The researchers were honest and said “that the process is unlikely to be economically viable.” But the press spun it into a major … Continue reading

Posted in Biofuels, Biomass EROI, Critical Thinking, Far Out, Other Experts | Tagged , , | 2 Comments

Why studies come up with different Energy Returned on Invest (EROI) results: can it be fixed?

[ There are many issues with biofuels beyond their trivial to negative energy return on investment (EROI). In Peak Soil I point out that current industrial farming techniques are destroying topsoil about 15 times faster than pre-fossil fuel economies — … Continue reading

Posted in Biofuels, Biomass EROI, Charles A. S. Hall | Tagged , , , | Comments Off on Why studies come up with different Energy Returned on Invest (EROI) results: can it be fixed?