Navy signs deal to build biggest ever UK super-carriers

Summary:
The UK Royal Navy has been promoted into the maritime superleague after ministers signed the long-awaited contract for two 65,000-tonne aircraft carriers. They will be the second biggest of their kind in the world, each the size of the QE2. Only the American Nimitz Class aircraft carriers, at 90,000 tonnes, have a more impressive tonnage.

University of Hawaii researchers discover new pathway for methane production in the oceans
Honolulu, HI – A new pathway for methane production has been uncovered in the oceans, and this has a significant potential impact for the study of greenhouse gas production on our planet. The article, released in the prestigious journal Nature Geoscience, reveals that aerobic decomposition of an organic, phosphorus-containing compound, methylphosphonate, may be responsible for the supersaturation of methane in ocean surface waters.
Methane is a more potent greenhouse gas than CO2 on a per weight basis. Although the volume of methane in the atmosphere is considerably less than CO2, methane is much more efficient at trapping the long wavelength radiation that keeps our planet habitable but is also responsible for enhanced greenhouse warming. Today, between 20-30% of the total radiative forcing of the atmosphere is due to methane. Terrestrial sources of methane production are well known and studied (including extraction from natural gas deposits and fermentation of organic matter), but those known sources did not account for the levels of methane observed in the atmosphere.