The Zero Carbon Britain report has come under a blistering attack from the Institute of Science in Society (ISIS) for making ‘fallacious assumption about biofuels’. So writes Patrick Noble on behalf of the society who says that instead of a ‘Zero Carbon Britain’ we could end up with a ‘Dust Bowl Britain’ if we blindly assume the environmental assessments made in the report are correct.
The report published by the Centre for Alternative Technology (CAT) details ways in which the country can cut its carbon emissions in half by making proper use of renewable energy sources, using more energy efficient buildings and by making a switch to electric cars.
Its assumptions about carbon emissions have been widely accepted and according to Noble; The Centre for Alternative Land Use, the Institute of Biological, Environmental and Rural Sciences, and even the IPCC assume it is true that biofuel production will effectively be carbon neutral as the crops absorb carbon as they grow.
However this assumption is incorrect, Noble writes. This can only be true if no fossil fuel energy is expended in growing biomass, in producing the fertilizers, pesticides and other chemical inputs and growing biofuel crops does not involve destroying natural carbon sinks by cutting down forests and turning other natural ecosystems into agricultural land. This assumption also ignores the displacement of indigenous peoples and decimation of biodiversity that biofuel crop production can cause.
Several reports from the not-for-profit institute tell another story to biofuel production ‘Biofuels: Biodevastation, Hunger & False Carbon Credits’ and ‘Land Rush as Threats to Food Security Intensify’.
According to the institute, CAT’s ‘sequestration sink’ will actually empty a little more at each harvest, creating annual losses of CO2 to the atmosphere. CAT’s ‘biological fields’ are emphatically not ‘carbon neutral’ Noble states.
While the Welsh Assembly considers adopting Zero Carbon Britain as a blue print for Zero Carbon Wales, Noble speaks out against the report. Accordingly he wrote to CAT after its first Zero Carbon Britain report was released, and sent it to the authors, but got no acknowledgement. Analysing the old report he exposes the underlying assumption more clearly.
The old report says that there are 18m hectares of agricultural land in Britain, and proposes what many may agree to be necessary: a reduction of livestock numbers, an increase in arable and intensive horticultural land and an increase in woodland, at the expense of permanent pastures (6 m ha down to 1 m ha) and rough grazing (6 m ha down to 2 m ha).
However, the report also suggests that 4m ha of short and longer rotation woodland be burnt for energy and that a third of the arable rotation (Rape and
Miscanthus) should also be burnt. That means the output of 40.5 per cent of the agricultural land of Britain is to be combusted. There is no suggestion as to what would replace the combusted nutrients and minerals lost to the land, though it mentions that ‘organic methods’ will increase carbon sequestration. Under the CAT agricultural regime, British agricultural land will move ‘inexorably towards desert and life in the soils will be annually reduced’, so less and less carbon is sequestered he concludes.