You’ve probably heard of the 3Rs – reduce, reuse and recycle. Pop star Jack Johnson’s even written a song about them! If we reduce what we buy, reuse things we've bought and recycle more, we’ll save energy and help stop the planet overheating.

We throw away 900,000 tonnes of clothes in the UK every year. But you don't need to splurge on new clobber all the time. Invite your friends round for the latest craze – a clothes swap party!  Find out more

Reuse plastic bags when you go shopping or use a trendy cloth bag or a rucksack instead. Why not knit a funky bag using old carriers? Get the knitting pattern here

Did you know it takes less energy to recycle an aluminium drinks can than it does to make a new one? And it’s not just paper, cans and plastic bottles that we can recycle.

If you have to have the latest mobile, recycle your old phone by sending it to Christian Aid. It’s better than chucking it out – and helps people in poor countries too! Find out more

Turning food scraps into compost is good for the garden and it’s fun! Find out how you can make your own compost bin.

Save electricity by turning the lights off when the classroom's empty. And turn your computer off when you're not using it.

Don't have radiators on and windows open - try turning the radiators down or off, so that energy isn't wasted.

Ask your teacher if your school can switch to Ecotricity for their electricity supply - they're the greenest supplier on the block. Your school's money will then go into green, renewable sources of energy such as wind turbines. It'll only take 5 minutes and for every person that signs up, Christian Aid will get £15. Click here for their website 

Ask your teacher if you can recycle more at school. Some pupils could be in charge of SAFELY organising the litter into what can be recycled and what can be composted. 

Save paper by writing on both sides. And recycle used paper that you don’t need any more.

Ask your teacher if the whole class can make a poster of energy-saving rules for the classroom.