The North Atlantic Ocean punches far above its weight when it comes to scrubbing carbon dioxide. While it accounts for less than 1.5 percent of the total surface area of the world's oceans, it captures about 20 percent of the CO2 sequestered by the seas. Cold ocean waters help trap planet-warming carbon dioxide lingering in the atmosphere. Then, algae soak up that carbon dioxide during photosynthesis, just like grasses and trees do on land. From the information collected thus far, the scientists have concluded that the spring bloom is preceded by a "winter simmer," when algae tend to lay low.

CAIRO – A vessel with an underwater robot arrived in Egypt on Thursday and is set to begin searching the Mediterranean for the wreck of the EgyptAir plane that crashed last month, authorities said. The John Lethbridge research vessel, which Egypt has hired from the Deep Ocean Search company, would begin combing the seabed on Friday in the crash zone between the Greek island of Crete and Egypt. What caused the Airbus A320 operating Flight MS804 from Paris to Cairo to go down on May 19, killing all 66 people on board, remains a mystery. The vessel, whose equipment can locate and retrieve black boxes from the seabed, arrived in Alexandria on Thursday, said Egypt's civil aviation authority. "The aircraft accident investigation committee for MS804 was at the port upon the arrival of the vessel," the authority said in a statement.