antarctic ice fluctuates wildly year to year, and the link to man-made global warming there is not clear, nasa ice expert walt meier said.
antarctic ice fluctuates wildly year to year, and the link to man-made global warming there is not clear, nasa ice expert walt meier said.
ozone depletion:312
the change was attributed to increasingly cold winters in the arctic stratosphere at an altitude of approximately 20 km (12 mi), a change associated with global warming in a relationship that is still under investigation.