Which of the following is not a consequence of a potential global warming over the next century?
◦ Poleward climate region shift of 150-550 km (90 -350 mi.).
◦ An average of 30% of forests will undergo major species shifts.
◦ Tropical diseases will spread to the subtropics and midlatitudes.
◦ High latitude ice fields will gradually increase in thickness and area.
◦ Sea level rise of .18-.59 m (7.1-23.2 in.).