1. IPCC. Global warming of 1.5°C.: Intergovernmental panel on climate change; 2018.
2. Progress Towards The Sustainable Development Goals,2020
3. WMO Statement on the State of the Global Climate in 2019,2020
4. Contributions of natural systems and human activity to greenhouse gas emissions;Yue;Adv. Clim. Chang Res.,2018
5. Emissions Gap Report 2019,2019