Energy saving is the low hanging fruit in the path to sustainability.
The energy production for an air conditioner is responsible for emitting over a kilogram of carbon dioxide to the atmosphere per hour. It also costs ~1NIS/Hour.
Why Do It?
Energy consumption is the main source of greenhouse gas emissions that are implicated in global effects ranging from climate change to ocean acidification. Current energy production is based on fossil fuels which are non-renewable with limited future reserves. At Weizmann we currently use ~10MW of electrical power on average (~1/1000 of total Israeli consumption). This power production emits about 10 ton of carbon per hour from power plants.