<
https://www.csmonitor.com/Environment/2023/0223/Growing-winter-food-and-community-spirit-in-a-geothermal-greenhouse>
"Tucked near a highway underpass, a greenhouse glows faintly in the cold night.
Inside, volunteers stand in the warmth, crowded around two pizzas topped with
homegrown basil. Rows of potted greens, herbs, peppers, eggplants, and even
strawberries line shelves along the walls.
The greenhouse is a new project of Eastie Farm, a nonprofit educational urban
farm founded in 2016 and housed in East Boston. Focused on feasible climate
action, the nonprofit – and its new greenhouse – provides the surrounding
community with greater control over its food supply. The building runs on
geothermal energy and is the first of its kind in New England. As a model of
what 21st-century development could look like, the greenhouse represents a
practical application of geothermal, an often inaccessible technology.
“Everything that we do, we try to make sure that it has a relevance here and
now, and it serves the purpose for the people who are living here today,” says
Kannan Thiruvengadam, the director of Eastie Farm. “This technology is already
possible. You don’t have to wait for tomorrow or the day after.”
The geothermal greenhouse operates as a heat exchange. Below the frost line,
Earth’s temperature stays at a steady 50 to 60 degrees Fahrenheit year round. A
fluid composed of water and antifreeze is pumped up from the ground, runs
through a compressor, passes over a warm coil, and finally blows into the
greenhouse as warm air. The fluid then heads back underground, forming a closed
loop system."
Via
The Fixer March 8, 2023:
<
https://reasonstobecheerful.world/un-agreement-protect-oceans-international-waters/>
Cheers,
*** Xanni ***
--
mailto:xanni@xanadu.net Andrew Pam
http://xanadu.com.au/ Chief Scientist, Xanadu
https://glasswings.com.au/ Partner, Glass Wings
https://sericyb.com.au/ Manager, Serious Cybernetics
