In a place where 90 percent of the available drinking water is not safe to drink, the schools will catch rainwater which is purified through a system of sand and planted tree roots.

Where summer temperatures reach 40 degrees Celsius, the buildings will sit on what Cucinella calls an “air lake,” which is a bed of gravel that allows the cooler air from the ground to circulate. And the classrooms will be built with high ceilings which let the hot air move up and away.

The broad columns that support the structure are filled with excavated earth, another low-tech device for controlling temperatures.

Combining old with the new

Cucinella says the design combines new technology with basic construction elements that have long been used in the Middle East.

“I like to think the school that we designed is, in one way, a look at the past as a reference - so, how people were able to deal with climate conditions for centuries without any electricity - and a look at the future, because we are able to use some really high-tech, specific technology to run the building better than before,” said Cucinella.

UNRWA says the first school will be completed in the next 12 months, but that more financing and technical expertise are needed to complete the full project.

The green building plans are part of UNRWA's broader reconstruction projects to help rebuild, following the Israeli ground offensive in Gaza that killed some 1,400 Palestinians nearly four years ago.

Source: VOANews