According to the initiative behind Warm Sweater Day, Klimaatverbond, lowering indoor temperatures by 1°C (34°F) saves around 6% of the nation’s energy consumption, and cutting back for one day would create enough surplus power to sustain three of the Dutch Wadden Islands for an entire year. Heating buildings like houses, offices and schools, as it turns out, consumes a serious amount of energy and cutting down this output helps significantly reduce carbon emissions nationwide.
Hence, for the last 12 years, Klimaatverbond has encouraged people, organisations and companies throughout the Netherlands to warm up with sweaters rather than radiators during one day in early February. Although this event doesn’t happen on the same date every year, it takes place around the beginning of February, in order to celebrate the Kyoto Protocol – a pioneering, international climate treaty that came into effect on February 16, 2005.
This year over 200,000 people officially participated in Warm Sweater Day and it is likely that many more took part in response to the event’s advertising campaigns. It is also common for organisations, like schools, universities or businesses, to organise special activities during Warm Sweater Day, including Best Sweater Competitions and communal soup drives.
For more information about Warm Sweater Day, and some simple tips on how to reduce household carbon emissions, make sure to check out the initiative’s website!