When temperatures are low, the temptation to take long, scalding showers and turn electric heaters to the maximum is high. And not knowing how much energy we spend, when we unthinkingly do these activities, makes it difficult for us to decrease our consumption.

In Europe, households are responsible for 32% of greenhouse gas emissions and 42% of energy. Cement production alone contributes to 5% of manmade CO 2 emissions .