1. the use of recycled paper can reduce the amount of co 2 – 2.5 kg. 1 per paper ream
2. draw back the plug electrical appliances when you're not using. Reduce the amount of co 2 to 450 kg per year.
3. use a cloth bag instead of plastic bags can reduce co 2 has 450 kg per year.
4. planting trees absorb co 2 co 2 in the air and reduce up to 545 kg per year.