Pacific Ocean |
In March, Ingrid Weisse, her husband and two young sons were aboard Alaska Airlines Flight 889, headed home from Portland, Ore. to Hawaii, when the Boeing 737 began buffeting so fiercely that it felt as if the plane would shake itself apart. The reason for this is clear-air turbulence, As global temperatures increase due to rising levels of greenhouse emissions such as carbon dioxide, the jet stream is experiencing more wind shear.