In Nigeria's Lagos, aquatic weed plagues waterways

Traffic jams on the snarled up roads of Nigeria's megacity of Lagos are legendary, but a growing problem is also clogging up the waterways of Africa's biggest city—water hyacinths.

New Delta invader threatens to clog waterways, pumps

WALNUT CREEK, Calif.-An invasive weed just now taking hold in the Delta could clog water delivery pumps and marinas on a scale never seen here before, but state officials say they are nearly hamstrung in trying to deal ...

Low-cost process produces natural gas from algae

(PhysOrg.com) -- A new method for converting algae into renewable natural gas for use in pipelines and power generation has been transferred from the Department of Energy's Pacific Northwest National Laboratory to the marketplace ...