This week on NOW:
Scientists say that over the last century, almost every glacier on earth
has gotten smaller and that the Arctic, which serves as the "air
conditioner" for the world, is warming twice as fast as anywhere else.
It's part of the body of evidence, they say, that proves humans are
changing the atmosphere and causing global climate change, which has
enormous implications for the health of the planet and its inhabitants.
So why are some in government still claiming that global warming is a
hoax? On Earth Day, NOW analyzes the latest from the scientific and
political fronts on climate change. The report looks at recent
scientific evidence that has set off alarms about the implications of
melting glaciers for rising ocean levels and talks to one coal-burning
energy company that has voluntarily pledged to stabilize its greenhouse