
Along with several other commenters I saw here, I think that the president should be able to multi-task. I disagreed somewhat with the priorities and the wording of others, so here's my shopping list for his first week
or two:
close Guantanamo -- this should be relatively easy.
First Tidal Power Turbine Gets Plugged InSource: Guardian Unlimited
An underwater turbine that generates electricity from tidal streams was plugged into the UK's national grid today. It marks the first time a commercial-scale underwater turbine has fed power into the network and the start of a new source of renewable energy for the UK.
Seagen Tidal Power InstallationSource: Alternative Energy
Marine Current Turbines has today confirmed that installation of its SeaGen commercial tidal energy system will commence during the week of August 20th in Northern Ireland's Strangford Lough.
Bay of Fundy: The resurgence of tidal powerSource: CBC
Twice a day, in accordance with nature's clock, the Atlantic Ocean pours through the Bay of Fundy with a controlled fury that is unmatched anywhere in the world.
Ocean Energy BionicsSource: -
BioPower Systems is developing a new ocean energy technology in Australia that will use bionics to mimic natural systems in order to produce energy. Both bioSTREAM and bioWAVE technologies use biomimicry, which refers to the adaptation of biological traits in engineered systems.

Tidal power is undergoing a stage of research and development similar to wind farm development 15 years ago and solar cell development a couple of decades back.