Y llynedd, gwnaeth eich ysgol ddefnyddio 740 kWh o ynni fesul disgybl. Mae hyn wedi costio tua £22 ac wedi cynhyrchu 160 kg CO2 fesul disgybl. Beth allech chi ei wneud i leihau eich ôl troed carbon yn yr ysgol?
You have completed 0/8 of the activities in the Byddwch yn Egniol! programme Complete the final 8 activities now to score 70 points and 30 bonus points for completing the programme
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