As Russia is focused on Georgia, and China is focused on the Olympics (two countries that might oppose further sanctions against Iran), the US is amassing its largest naval buildup in the Persian/Arabian Gulf since the 1991 Gulf War. This deployment comes on the heels of both House and Senate resolutions calling on the President to take action against Iran, which could only be accomplished through a naval blockade, an act of war under international law.
energy crisis
A US Blockade of Iran Would Cause an Energy Crisis

Australian Town to Run on Solar Power in 2 Years
A sun-drenched town in Australia's north hopes to use only solar power in two years after being chosen as the site for a solar thermal power station. Cloncurry, which boasts recording Australia's hottest day, would be able to generate electricity on rare cloudy days and at night from the station which runs off heat stored in graphite blocks.

Garbage-Burning Oven Helps Clean Up & Power Kenyan Slum
At least there will be a place for all those $200 OLPC laptops and shredded spam documents

Fixing the Climate, One SmokeStack At A Time
An energy-saving technology takes recycling to new heights, but it has an image problem.