Grist | Topics | 3 Results

RESULTS		Results 1 – 3 of 3
Headline	Author	Published	Section
I Feel Hot and Cold (Can't Explain) On how climate change will affect us	Umbra Fisk	17 Feb 2005	Ask Umbra
Dear Umbra, My girlfriend asked me the other day why global warming was going to be so bad for her. I just graduated with a degree in environmental science, and I like to think I learned something in my classes, but I still struggled to give her a concise, straightforward answer. I see new research coming out all the time in Daily Grist and other places on the consequences of global warming and pre ...
Topics: advice, Ask Umbra, climate, education (all these topics)

A Bit of the Old Ultraviolet On UV ratings	Umbra Fisk	14 Oct 2004	Ask Umbra
Dear Umbra, Our radio station provides daily information regarding ultraviolet ratings. I am curious about what these ratings actually represent, and why they change so dramatically. For example, for the past few years, most ratings have been between three and seven. Now we are getting ratings of 10. I doubt the ratings are directly related to Dobson units, which measure the amount of atmospheric ozone present, because they ...
Topics: advice, Ask Umbra, climate, climate science, education, ozone (all these topics)

Leavin' on a Jet Stream On jet streams		06 Feb 2003	Ask Umbra
Dear Umbra, Why does the jet stream move from west to east? Joe Pittsburgh, Penn. Dearest Joe, To get a decent bagel? Image: NASA. There are actually two main global jet streams, the "polar" in the Northern Hemisphere and the "subtropical" in the Southern Hemisphere. The ridiculously simple answer to your question is that jet streams move west to east because the Earth rotates west to east in its orbit. (It also matters t ...
Topics: advice, Ask Umbra, climate, climate science, education (all these topics)

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