Petrochemical facilities in the Houston area are assessing their hurricane preparedness after Hurricane Harvey. This oil refinery reinforced storage tank roofs with geodesic domes — the gray caps on some of the white tanks in the photo — to better withstand a deluge.

Petrochemical facilities in the Houston area are assessing their hurricane preparedness after Hurricane Harvey. This oil refinery reinforced storage tank roofs with geodesic domes —  the gray caps on some of the white tanks in the photo — to better withstand a del