sommaire-A pop-up park is a cabaret in Camden, New Jersey; a quest to find play voids in cities; a Minnesota lake's overly rich diet of old phosphorus; Barry Diller's new pet project in the Hudson River; and more.Edited by Adam Regn Arvidson, FASLA-The global spread of eucalyptus, "fuel tanks wrapped in kindling." Plus, koalas: indolent, sharp-clawed, and anything but care bears.By Constance Casey-The Dust SettlementRegulators in charge of clearing up clouds of particulates blowing off the dried-up Owens Lake in California have reached their ultimate solution: till the lake bed, then flood it gently.By Anne Raver-What Ecodistricts NeedComprehensive schemes for ecodistricts promise greener neighborhoods in ways that avoid regulatory and developer whims. A big hurdle remains in furnishing their heavy utilities.By Brian Barth, Affiliate ASLA-Life in the DirtWhat to know about exudates, cation exchange, tilth, and other vital and all but invisible factors on which thriving soil depends.By James Sottilo66 House CallAmong the VinesIt's one thing to live in Napa Valley, and another entirely to make your house blend seamlessly with surrounding vineyards. Scott Lewis Landscape Architecture made it happen.By Bill Marken, Honorary ASLA76 GoodsSet in RowsIf you must have bollards, at least make them good ones.By Lisa Speckhardt