Employees driving between work and home is a contibutor to greenhouse gas emissions and climate change.  Research shows that reducing avoidable work related travel, such as office based work, has the potential to significantly reduce carbon emissions over time.  For example, one study showed that increasing the number of people who spend half their week working from home would cut peak hour traffic by 5%, save 120 mL of fuel and 320 kt of carbon.  Adoptions of Working from Home for 4 days per week would reduce emissions by 80%.  Because office buildings consume significantly more power than residential homes, the minimisation of office usage also contributes to green house gas emission reductions between 25-30%.