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Giant bubbles could be 'built over Beijing parks to save residents from smog danger'

Architecture firm Orproject has proposed the construction of a sealed canopy filled with clean air. Bubbles would cover a park and botanical garden, providing a healthy, temperature- and humidity-controlled area. (South China Morning Post; Photos: courtesy of Orproject)

Architecture firm Orproject has proposed the construction of a sealed canopy filled with clean air. Bubbles would cover a park and botanical garden, providing a healthy, temperature- and humidity-controlled area. (South China Morning Post; Photos: courtesy of Orproject)

Architecture firm Orproject has proposed the construction of a sealed canopy filled with clean air. Bubbles would cover a park and botanical garden, providing a healthy, temperature- and humidity-controlled area. (South China Morning Post; Photos: courtesy of Orproject)