New evidence is popping up in at least 22 states that aggressive weeds, like pigweed, horseweed, common ragweed, and goosegrass are becoming resistant to glyphosate. This could spell trouble for soils and surface waters around the country. Round-Up resistance will lead to more tillage to rid crop fields of undesired plants. This can result in greater soil erosion, soil structure damage, and soil moisture loss, not to mention greater expenses in food production. This may also lead to a potential increase of pesticide residues and sedimentation in our surface waters.

Two scientists at Auburn University, Andrew Price and Scott McElroy speak out about this problem.

The American Society of Landscape Architects has released a new Green Infrastructure online tool as part of their Sustainable Guide series. The group has compiled topic-related organizations, research studies, case studies, and newspaper articles that are applicable to planners, natural resource professionals, municipalities, and design professionals.

ASLA 2012 General Design Award of Excellence. A Green Sponge for a Water-Resilient City: Qunli Stormwater Park. Haerbin City, Heilongjiang Province, China. Turenscape and Peking University, Beijing

Green infrastructure is an interconnected network of natural areas and open spaces, as well as technologies and practices that use natural systems - or engineered systems that mimic natural processes - to provide, protect, maintain or enhance ecosystem services in human dominated landscapes.