Acording to the UN food agency 1/3 of food produced by humans goes to waste. This amounts to 8% of global emissions from the shipping, processing and decomosition of wasted food. There are two avenues through which colleges can address their contibution this problem. Firstly, by reducing the amount of absolute food waste probuced by the college by taloiring the supply of meals at the colleges to fit demand more closely and finding organisations and charities to safely donate unsold meals. Secondly, reduce the carbon intensity of food being served at the college by reducing the amount of meat dishes on offer, adjusting menus to reflect seasonality of produce and developing supply chains with local suppliers where feasible.
BUILDINGS & ENERGY
Heating and electricity in college buildings is one of colleges most carbon intensive activities so it's important to tackle it head on. Doing so can be an expensive endeavor but colleges will quickly see returns on there investments in reduced billing.
To de-carbonize heating and energy:
1. Reduce in demand
– insulate, double-glaze, reduce air leakage.
2. Increase in system efficiency
– more efficient heating, lighting, ventilation and control systems.
3. Reduce carbon in the energy supply - pv generation, ground source heat pump.
Following these steps Trinity College Cambridge reduced the carbon consumption of college assets by 88%.