But the sober message about wind and solar applies to all renewables: All renewables, much as I love them, deliver only a small power per unit area, so if we want renewable facilities to supply power on a scale at all comparable to our consumption, those facilities must be big.

CNN: Commentary: Let's get real about alternative energy

Extell Development Co. earlier this month filed plans with the city for a 600-unit rental building at West 41st Street and 10th Avenue, betting on the burgeoning residential area west of Midtown Manhattan.

WSJ: Plots & Ploys: Game Day Payday

When the truck is stopped, the driver turns on an air handler that circulates coolant around the ice and blows cold air from the unit into the bunk area of the cab.

CNN: An eco-friendly way to cool big trucks

They can carry five to 20 times more current in the same unit area while reducing the amount of energy lost as heat by 75-97% (depending on whether the current is alternating or direct), even after accounting for all the nitrogen-cooling paraphernalia.

ECONOMIST: Inside story