STATELINE, Nev. (AP) — Researchers at Lake Tahoe are using tiny bubbles to combat the spread of invasive weeds that rob the lake of its clarity. The Tahoe Daily Tribune reports conservationists are partnering with property owners to expand the...

Researchers at Lake Tahoe are using tiny bubbles to combat the spread of invasive weeds that rob the lake of its clarity. The Tahoe Daily Tribune reports conservationists are partnering with property owners to expand the use of so-called...