goes Green for Earth Week 2015 brought to you by Rodale’s Organic Life
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Plenty of sun
of sunlight, then sets at
of moolight, then sets at
Sunny skies and cooler conditions will be the rule this week in Chicago. more >
Dec 20, 2012; 5:00 AM ET
The 540 line is often used by meteorologists to determine the chances of rain vs. snow.