The methane flows through pipes to the 16-bed Gaviotas hospital, which a Japanese architectural journal has named one of the 40 most important buildings in the world. It is at once both futuristic and ancient, a maze of angles formed by white walls, glass awnings, skylights, brushed steel columns, and exposed supports trimmed in blue and yellow enamel. The interior is cooled with underground ducts whose hillside intakes face the prevailing breeze. Opposing layers of corrugated roofing create a series of air channels that further bleed away the heat. Solar collectors on the roof alternately heat, boil, and distill water.
Electricity is from solar photovoltaic cells.
The only hospital within a 12-hour radius, it serves all comers, including both guerrilla and army forces battling in the area. Like the Red Cross, everybody respects us. A short, vine-covered walkway connects the Gaviotas hospital to the maloks, a separate wing built by the local Guahivo Indians. Instead of beds, patients and their families lie in hammocks hung from wooden beams under a great thatch roof. Relatives of the sick tend crops of tomatoes, lettuce, and onions in an adjacent hydroponic greenhouse.