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Graphic explains how and why tree leaves change color in the fall; the effects of the drought may be seen in this year's fall foliage because the lack of water makes it harder for the leaves to produce carbohydrates, which are used in the growth process. Chicago Tribune 2012<p> With HOME-ENV-DROUGHT-LEAVES:TB, Chicago Tribune by Bridget Doyle<p> 06000000; 08000000; 10000000; 17000000; ENV; HUM; krtcampus campus; krtenvironment environment; krtfeatures features; krthumaninterest human interest; krtlifestyle lifestyle; krtnational national; krtweather weather; krtworld world; leisure; LIF; WEA; krt; mctgraphic; 06007000; 06011000; 17002000; environmental issue; global change; global warming; krtnature nature; 13004004; botany; krtscience science; krtscitech; natural science; SCI; 03001000; 03015001; DIS; krtdisaster disaster; krtdrought drought; carbohydrate; chlorophyll; color; doyle; fall; green; leaf; leaves; nieland; plant; season; temperature; tree; tb contributed; 2012; krt2012
Officials: Tsarnaev Friend Linked to Slaying
Obama:Sexual Assault Threatens Trust in Military
Bridge Collapse Survivor: 'Rough Day'
Jersey Shore Open for Business
Raw: Memorial Day Flags Placed at Arlington
New Wheelchair Lift Promises More Access
First Person: Mom Discusses Famous Tornado Photo
Raw Video: Washington State Bridge Collapse
Boy Scouts Approve Plan to Accept Gay Boys
Officials: Truck Hit Bridge Before Collapse
Sheriff: No Sign Killing of 2 Kids Was Planned
Obama Defends Drone Strikes, With Limits
Raw: Jurors Deadlock on Jodi Arias Penalty
Boy Scouts Decision "First Step" Say Activists
Raw: Utah Teen Arrested in Death of His Brothers
Closer Look at Okla. School Where Children Died
Two Suspects in Murder Known to London Police
"Be Ready": NOAA Warns of Busy Hurricane Season
SeaWorld: Penguins Are Coolest Thing in Florida
