The phytoplankton that brought Earth to life
Clip: 3/5/2014 | 4m 43s
Without phytoplankton in the ocean, Earth would not have the oxygen we breathe today.
Without the "billion billion billion" Prochlorococcus, a plant-like bacteria in the ocean, Earth would not have the oxygen we breathe today. But the more scientists study about these diverse organisms, the less they know, says Penny Chisholm, an oceanographer at MIT.
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Major corporate funding for the PBS News Hour is provided by BDO, BNSF, Consumer Cellular, American Cruise Lines, and Raymond James. Funding for the PBS NewsHour Weekend is provided by...
The phytoplankton that brought Earth to life
Clip: 3/5/2014 | 4m 43s
Without the "billion billion billion" Prochlorococcus, a plant-like bacteria in the ocean, Earth would not have the oxygen we breathe today. But the more scientists study about these diverse organisms, the less they know, says Penny Chisholm, an oceanographer at MIT.
Problems playing video? | Closed Captioning Feedback
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Coal producer to pay hundreds of millions for pollution
Clip: 3/5/2014 | 5m 46s | Gwen Ifill talks to Dina Cappiello of The Associated Press to discuss the EPA settlement. (5m 46s)
Examining dangers for journalists around the world
Clip: 3/5/2014 | 7m 15s | Egypt’s arrest and trial of three journalists has prompted outcry around the world. (7m 15s)
Fishing for data in the radioactive waters off Fukushima
Clip: 3/5/2014 | 8m 53s | Researchers are studying fish swimming through radiation-tainted waters of the ocean. (8m 53s)
Will the new SAT overhaul be A) propitious?
Clip: 3/5/2014 | 8m 23s | The College Board announced a partial overhaul of the SAT Wednesday. (8m 23s)
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Major corporate funding for the PBS News Hour is provided by BDO, BNSF, Consumer Cellular, American Cruise Lines, and Raymond James. Funding for the PBS NewsHour Weekend is provided by...