Australian: IN the most unlikely of places, what could be the world’s most expensive clean energy project is just eight months away from its first residents moving in. Masdar City, an ambitious $US22 billion ($24.3bn) carbon-neutral, no-waste community, lies on the outskirts of oil-rich Abu Dhabi. Abu Dhabi is one of the world’s richest cities and one of the highest per capita greenhouse gas emitters. It sits on one-tenth of the world’s known oil reserves and has enough to keep producing …