Science Bowl Question

W) The polar climate warms, permafrost melts, microbes digest vegetation and release methane, the methane further warms polar climate

X) The polar climate warms, sea ice melts, albedo lowers, and polar climate further warms

Y) Global warming causes more water to evaporate from the surface, which condenses into clouds that then reflect more sunlight back to space, which cools the Earth

Z) Global warming causes the southwestern U.S. to become even drier, reduced evaporation leads to fewer clouds so the Earth's albedo remains low, thus warming the climate