After energy, the biggest driver of climate change is raising livestock for meat. That means that, if your venue or vendor serves food, one effective way to reduce our impact on the climate is to include more vegetarian options on the menu and limiting the highest carbon options like beef and lamb. By encouraging punters to choose delicious “climate-friendly eating”, you can have a big impact beyond your own space. Check out The Climatarian Challenge for more info.
As well as reducing meat, make sure to preference fresh, local, seasonal produce. Not only is food sourced locally healthier, but it tends to use less energy in its production. Food miles, the distance from producer to end user, are also reduced thus minimising air pollution and carbon emissions associated with its transport whilst supporting the local economy.