Frequently Asked Questions (FAQ)
(To protect privacy, the names of the people who asked the questions below are not shown)
"How does the carbon balance work?"
Humans have been burning fossil fuels for over 150 years and they now supply roughly 80% of the world’s energy. This has resulted in large amounts of carbon dioxide, a greenhouse gas, being released into the atmosphere. Greenhouse gases trap heat in our atmosphere, which contributes to Global Warming. Trees absorb carbon dioxide from the atmosphere as they grow; however, the trapped carbon is released when the wood decomposes. By immersing timber in seawater and freezing we prevent the timber from decomposing, preventing the carbon from returning to the atmosphere. Thereby, halting and eventually reversing Global Warming.
"Will industrialisation of Antarctica by hauling and processing bergs and timber damage Antarctia?"
We have no plans to industrialise Antarctica. The timber chipping plants will be built on the Falkland Islands or at the southern tip of South America. Terafactories for the formation of composite icebergs are located off the coast of the Antarctic Peninsular, and the finished composite icebergs will be positioned off the mainland. We don’t require any activity on the Antarctic mainland.
"Should we really be considering using Antarctica, the planet’s last great wilderness, as a dumping ground to get us out of a climatic hole that we’ve dug ourselves into?"
We agree that humanity has created a “climate hole.” As a result, we have a responsibility to correct our error before rising global temperatures destroy Antarctica. To protect the planet’s last great wilderness, the composite icebergs will be formed and stored off the mainland.
"How will this project affect Antarctica's penguins?"
The impact of composite iceberg placements on Antarctica’s penguins (and other wildlife) necessitates extensive research and ongoing monitoring. Potentially suitable slopes can be added to the sides of the composite icebergs to allow penguins to climb onto their flat tops, which might provide beneficial habitats.
"Isn't transporting the timber from plantations going to need a lot of boats?"
Yes, a sizable fleet of cargo ships will be required to transport timber from plantations to Antarticia. Fortunately, bulk marine transport can be extremely efficient while emitting relatively little CO2. Following best practices, we estimate 97+% efficiency, requiring only a modest number of additional trips to offset carbon emissions due to transportation.
"What about dumping the wood in the Sahara deserts where it is too dry to decompose?"
Long-term prevention of both accidental (e.g., lightning strike) and deliberate (e.g., arson) ignition would be extremely challenging.
"Why don't you grow tree species that match to local environment and can be grown as a coppice crop?"
As long as trees grow at a decent rate, this is a reasonable approach. However, if the native trees grow too slowly, they won’t capture a sufficient quantity of carbon to reverse Global Warming.
"There has been a lot of work on willow and poplar coppice systems. Could that be used?"
Yes, our trials with willow have been successful. Beyond trees, a variety of other plants can be used to capture carbon as biomass. For example, we have tested bamboo which is a grass.
"Could the selection of 'fast' growing species including Poplar and Southern Beech?"
Absolutely, a wide variety of tree species to suit the geographical location and support local wildlife could be grown.
"I'm sceptical about geo engineering solutions. Tree planting is good and over a 100 years a tree might sequester as much as 1 tonne of CO2, of course dependent on species and climate. Removing trees to create composite ice seems to me to defeat the objective of sequestration?"
Please take a look at the infographic on the ‘Home’ page, which explains the benefit of breaking the carbon cycle by preventing organic material (timber) from decaying. In other words, each composite iceberg removes thousands of tonnes of carbon from the atmosphere on a permanent basis.
Would wildlife benefit from this plan?
Yes. Wildlife will face challenges if Global Warming is not solved.
"It could go to the nearest cold place – I suspect the idea to shipping material long distances may be what people are baulking at although no one seems to mind importing woodchips to burn!"
People may ‘baulk’ at the thought, but bulk marine transport can be extremely efficient with relatively low carbon emissions.
Personally I am not keen on eucalyptus except in Australia because it has done a lot of environmental damage in places like north Africa and Spain?
We have no affinity for eucalyptus beyond the fact that it is a useful species for calculating ‘optimistic’ carbon capture rates. There is a sliding scale of species vs. land area required (for example, eucalyptus requires the least amount of land).
"Young fast growing trees take in and store carbon but once a tree is mature it then has a period when it is carbon neutral but as it ages it starts to release carbon."
On a global scale, tree planting can only be a short-term fix unless something is done to stop trees reaching maturity and starting to decay. Growing trees, without ‘breaking’ the carbon cycle, results in a net zero change.
"Could composite ice be used as building blocks to relace need to import concrete etc in fragile tundra type environs?"
Possibly, to a limited degree. However, the total quantity of composite ice which needs to be stored greatly exceed the expected demand for construction material in extremely cold regions.
"How stable is composite ice in very dry environments ? could it be used to make emergency housing in areas like Somalia Yemen Afganistan ? Removing atmospheric carbon + increasing stored soil carbon,+ promoting wildlife, + stabilising ice caps, + increasing albedo, + building things.
We believe composite ice would melt in temperatures typical found in Somalia, Yemen, and Afghanistan. The trapped carbon would subsequently be released back into the atmosphere through decomposition.
"Is this a temporary or permanent solution?"
The closest analogue we can think of is a tourniquet for the planet. It’s not perfect, but it appears feasible. If it can keep the Earth alive long enough for advanced energy technologies (such as affordable fusion power) to be developed, it will have fulfilled its purpose.
"Could the wood be sunk in a very deep place in the ocean where there is no oxygen and where wood could get fossilised?"
Theoretically yes, however in practice, it is difficult to submerge wood with a density less than seawater. There are a few wood species with densities greater than saltwater. Unfortunately, because they are slow or medium growers with a poor regeneration rate, the land area required is excessive.
"Could timber be convert wood into charcoal?"
The conversion process would release more carbon than converting into composite ice.
"Could composite ice be used to dispose of diseased timber?"
The long term storage of diseased timber is currently being evaluated.
"Where would all those ships sail from?"
To reduce carbon emissions associated with transporting the timber to the seaport, the cargo ships will operate from commercial seaports closest to the plantation. Timber will be moved downriver to seaports where feasible.
"Where in Antarctica could they go with suitable offloading port facilities?"
The chipping plants will be built on the Falkland Islands or the southern tip of South America. As a result, cargo ships do not require any offloading port facilities within the Antarctic Circle. The Terafactories (for the formation of composite icebergs) are located off the coast of the Antarctic Peninsular and unload biomass directly.
"What about burying the timber in the ground to prevent decay?"
When wood is buried in the ground, it usually decays quickly. However, if the burial hole is lined with a thick layer of airtight clay, the oxygen supply is limited and the rate of decay is slowed. In order for this to work in the long run, the land must never be built on because any damage to the top layer of clay would allow air to enter and allow the contents to decompose. Furthermore, a large amount of impermeable clay needs to be available to line and hermetically seal the hole. These constraints have an impact on financial costs as well as suitable geographic locations.
"Is composite ice the same a Pykrete?"
Pykrete is made from freshwater and wood, whereas composite ice is made from seawater and wood. In comparison to Pykrete, the rate of organic decomposition in composite ice is slower. Furthermore, seawater is more readily available than freshwater.
"Why don't you store some of the bergs around the Arctic?"
A study of the annual temperature profiles at both poles suggests the Antarctic is more suitable than Arctic for long term composite iceberg storage.
"What about the polar bears?"
Polar bears are native to the Arctic and surrounding areas, so the placement of composite icebergs around Antarctica will have no direct impact on them. However, combating climate change will aid in the preservation of the Arctic, which will benefit them.
"How can the composite icebergs reflected more sunlight?"
As the composite icebergs are relatively flat and stable, a layer of ‘fresh’ snow will form on the top surface. This will reflect solar radiation back into space, which would otherwise be absorbed.
You can ask a QUESTION by emailing it to question@freezingglobalwarming.org
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