1. NASA Goddard Institute for Space Studies. GISS Surface Temperature Analysis (GISTEMP) 2019. https://data.giss.nasa.gov/gistemp/ (accessed December 15, 2019).
2. Improvements in the GISTEMP uncertainty model;Lenssen;J. Geophys. Res. Atmos.,2019
3. Intergovernmental Panel on Climate Change. Climate change 2014 - Synthesis report. 2014. 10.1017/CBO9781107415324.
4. Scripps Institution of Oceanography. The keeling curve, 2017. https://scripps.ucsd.edu/programs/keelingcurve/ (accessed December 15, 2019).
5. CO2, the greenhouse effect and global warming: from the pioneering work of Arrhenius and Callendar to today’s Earth System Models;Anderson;Endeavour,2016