Giant fissures have been appearing in the ground across the southwest US. In southcentral Arizona alone, 272 kilometers (169 miles) of these cracks have been mapped, while they have also appeared in Utah, California and Texas.ย The cracks are not natural formations, according to Joseph Cook of the Arizona Geological Survey, who told Insider that "it's something … [Read more...] about “It’s Something We’ve Caused”: Giant Fissures Are Opening Up In The US