HONOLULU, Hawaii (AP) — The U.S. Army Corps of Engineers announced the cost estimate for a flood prevention project in Hawaii has doubled, striking another blow to the effort.
This is partly a consequence of the low-intensity South Atlantic Anomaly moving to the west, bringing lower field strengths with it, while stronger fields replace it in the east as it moves away. But in addition between 1999 and 2016 the maxima of field intensity over North America have ...