Bioengineers are creating human body parts to replace organs and manage life-threatening diseases. How techniques like 3-D printing and stem cell research are driving medical advances and raising ethical questions
Oil from the BP disaster has entered currents that will likely carry it out into the Atlantic Ocean and possibly up the East Coast. Scientists on the long-term environmental consequences of the disaster.
- William Hogarth dean, College of Marine Science, University of South Florida, former administrator for fisheries, National Marine Fisheries Service
- Carys Louise Mitchelmore associate professor, Chesapeake Biological Laboratory, University of Maryland Center for Environmental Science
- Douglas Rader chief oceans scientist, Environmental Defense Fund.
- Jackie Savitz pollution campaign director, senior scientist, Oceana
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