As you celebrate Earth Day 2014, find out if you're living as "green" as you think.
While it keeps old tires out of the landfill, rubber mulch isn't as effective as wood mulch at keeping weeds at bay and isn't permanent like advertisers claim. It does gradually break down and can pose a risk to your soil and groundwater.
Seoul National University/Handout/Reuters
Lucy Richardson/ Reuters
iStock / gbh007
National Portrait Gallery, London
iStock / mashabuba
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