Portland's October Arbor Day aims to help tree canopy

PORTLAND, Ore. (KOIN) -- The City of Portland has been planting hundreds of trees to improve the city's tree canopy to help make it cooler in neighborhoods that haven't been as shaded in the past.

Hundreds of young trees are being given away this month to be planted in yards all across Portland. For the past 135 years, Portland has celebrated Arbor Day, which historically has been in April. But Portland's Arbor Day is in October -- and the main reason is the city's increasingly hot dry...