ENVIRONMENTAL ADVANTAGES
Conventional Foods Have Hidden Environmental Costs
We are all aware how some conventional agriculture destroys natural resources.
However, many production costs are externalized, meaning we pay in other ways.
Hidden costs include depletion of rainforests, fresh water, fertile topsoil,
pollution from pesticides, herbicides and climate change.
All this means food production is far more costly than the price you pay at
the checkout counter. Adding up all these external costs, some have calculated
the true price of a fast food burger to be more than $100!
Conserving Fertile Land and Soil
At Earthrise Spirulina is grown on soil that is a salt clay, unsuitable for most
conventional crops. No soil erosion takes place.
Since Spirulina is 60% to 70% protein, higher than any other food, it's rapid
growth means it yields 20 times more protein per acre than soybeans, 40 times more
than corn, and over 200 times more than beef. Spirulina does not require fertile
land. One kilo of corn protein causes 22 kilos of topsoil loss. One kilo of beef
protein causes 145 kilos of topsoil loss. Growing spirulina causes no soil erosion.
More Efficient Water Use
Spirulina uses less water per kilo of protein than other foods. Water is recycled
back to the ponds after harvesting. The ponds are sealed, so very little water
seeps through the ground. Conventional drops lose water through seepage,
evaporation and transevaporation. In spirulina farming water loss is mainly
through evaporation.
Spirulina protein uses 25% the water of soy, 17% of corn and only 2% the water
required for beef protein. At Earthrise, only 6 gallons of water are needed for
a 10 gram serving of spirulina, greatly less than 15 gallons for a serving of bread,
65 for milk, 136 for eggs, 408 for chicken, and 1,303 gallons for a burger.
More Efficient Energy Use
Spirulina requires less energy input per kilo than soy, corn or beef, including
solar and generated energy. Its energy efficiency
(food energy output per kg / energy input per kg) is 5 times higher than soy,
2 times higher than corn, and over 100 times higher than grain fed beef. As cheap
energy resources disappear, costs of energy dependent foods are dramatically rising.
Spirulina Eats Carbon Dioxide; Big Oxygen Producer
Forests help absorb atmospheric carbon dioxide. Trees can absorb 1 to 4 tons of CO2 per
hectare per year. Spirulina is even more efficient. In the California desert, spirulina
fixes 6.3 tons of carbon per hectare per year. It produces 16.8 tons of oxygen during the
same period of time.
Greening Our Planet
Spirulina and perhaps other algae can deliver a superfood efficiently, without destroying
valuable resources. As Spirulina production expands using non-fertile land and brackish
water, we can stop cutting or disturbing natural forests to grow new food. Cropland can
return to wilderness. When more people eat lower on the food chain, we can halt pressures
to destroy wilderness, and help regreen our planet.
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