Climate Lab is a Seattle Times initiative that explores the effects of climate change in the Pacific Northwest and beyond. The project is funded in part by The Bullitt Foundation, CO2 Foundation, Jim and Birte Falconer, Mike and Becky Hughes, Henry M. Jackson Foundation, Martin-Fabert Foundation, Craig McKibben and Sarah Merner, Mary Snapp and Spencer Frazer, University of Washington, Walker Family Foundation and Kristi and Tom Weir, and its fiscal sponsor is the Seattle Foundation. PACIFIC, King County — The city assured everyone the levees remained stable, holding back the White River’s floodwaters. So Jessica Adams and Kevin Wik tucked into bed in the early morning hours of Dec. 16, their worries assuaged. The couple had just returned to their home on White River Drive after living for 2 ½ months in Seattle Children’s hospital for the premature birth of their twins, navigating a labyrinth of polished floors and fluorescent lights.…