Image: KCAL CBS 2 Californians should keep an eye skyward. It
was entertaining enough when an unexpected and unexplained chunk
of ice dropped from the heavens and cratered into an Oakland
park last week, but another salvo of ice landed last Saturday,
raising eyebrows and questions: Is this coincidence or something
more sinister? Scientists cant seem to decide. The FAA is
investigating the incidents and assuming that the ice chunks
originated on aircraft. Scientists at the Planetary Geology
Laboratory in Madrid find the aircraft explanation convincing
but also suggest global warming as a possible cause. Warmer-
than-usual air pushes the next layer of the atmosphere to
higher—and colder—altitudes. The resulting temperature
differential might lead to the formation of the mystery mega-
hail—even when skies are clear. El Niño, anyone? —Eric Mika Link
(via the San Francisco Chronicle)Link (via KCAL CBS 2)