General tips
Kitchen Tip : On electric stovetops, use flat-bottomed pans that make full contact with the element. A warped or rounded pan may be a conversation piece, but will waste most of the heat.
Buy Local Food : ...but at the same time, figure out what makes sense. It is more energy efficient to raise lambs in New Zealand and ship them to the UK than to raise them in the UK, because New Zealand lamb farming is more energy efficient. It is also more energy efficient to buy produce raised in Spain, than produce that has to be grown in greenhouses in the UK. Baby steps require figuring out which things make sense and which don't.
A local veg box shared between friends is a few quid a week, and the perfect way to slash your food miles while eating good food. So if you're self-catering at university why not try a doorstep delivery from one of the many veg box scheme providers?