Greenhouse gas emissions contribute to climate change, and they are caused by different sources.
| Electricity production | 25% |
| Food, Agriculture, and Land Use | 24% |
| Industry | 21% |
| Transportation | 14% |
| Buildings | 6% |
| Others | 10% |
The 24% of greenhouse gas sources within the sector of food production, agriculture and land use are composed as followed:
| Deforestation and Land Use | 9% |
| Methane from animals | 5% |
| Methane from rice | 1% |
| N2O from fertilizer and manure | 4% |
| Others | 5% |