Yet, by switching off the lights, all we are doing is making it harder to see.

The main thing that anyone accomplished by turning off the lights at nighttime for an hour was to make it harder to see.

Well, we've had government information campaigns over the years when they tell you to switch off the lights when you leave the home.

On the same evening, another billion will participate in the environmental event Earth Hour by turning off their lights from 8 30 9 30.

Earth Hour teaches us that tackling global warming is easy. Yet, by switching off the lights, all we are doing is making it harder to see.

We looked at rooms that were naturally ventilated, where the hospital let us turn off the mechanical ventilation in a wing of the building and pry open the windows that were no longer operable, but they made them operable for our study.

Tackling climate change by turning off the lights and eating dinner by candlelight smacks of the let them eat cake approach to the world s problems that appeals only to well electrified, comfortable elites.

At the stroke of 8 30 p.m. on Saturday, March 27, nearly a billion people in more than 120 countries demonstrated their desire to do something about global warming by switching off their lights for an hour.