http://www.hcn.org These are the search results for the query, showing results 1 to 3. http://www.hcn.org/issues/41.1/notes-from-the-water-underground Research hydrologist Gordon Grant is fascinated by the groundwater in the Pacific Northwest. No publisher Jane Braxton Little Christopher Carlson Hydrology Climate change Gordon Grant Forest Service Groundwater Scientists Drought Water sources 2010-02-05T09:15:01Z News Article http://www.hcn.org/issues/40.18/back-to-the-future A long time ago, the earth warmed considerably; now, scientists study fossils to find out what happened – and what it might mean for us today. No publisher J. MADELEINE NASH Fossils Paleontology Climate change Hot Times Paleobotany Scientists Scott Wing Paleocene-Eocene Thermal Maximum 2010-09-30T15:59:11Z News Article http://www.hcn.org/issues/341/16868 Congress has tried to regulate ballast water in ships in order to stop the spread of zebra mussels, but so far loopholes in the law and tussles over policy have made the effort ineffective. No publisher Michelle Nijhuis Great Lakes Ontario Congress International ballast water exotic species Scientists Hugh MacIsaac Union of Concerned Zebra mussels Phyllis Windle Invasive National Invasive Species Act Politics Coast Guard Maritime Organ invasive species University of Windsor in 2010-08-17T23:31:43Z News Article