Hand dryers (Airblades or Xlerator in particular).

Now here’s why it doesn’t matter:

The carbon emissions of drying hands is between 3 and 20 grammes of CO2e (all greenhouse gases converted into a carbon dioxide equivalent). Assuming you wash your hands on average twice a day whilst at work (and that you work for approx 245 days a year) the annual handwashing…

No man is an island entire of itself; every man

is a piece of the continent, a part of the main;

if a clod be washed away by the sea, Europe

is the less, as well as if a promontory were, as

well as a manor of thy friends or of thine

own were; any man's death diminishes me,

because I am involved in mankind.

And therefore never send to know for whom

the bell tolls; it tolls for…