The international agreement on Climate Change reached in Paris
in December 2015 has highlighted the need for work on practical steps to reach the targets set at that meeting. The UK Department of Energy & Climate Change has led an international project to develop a software package to explore technically possible strategies which could meet these targets. British Pugwash, in collaboration with the European Physical Society Energy Committee, has been reviewing this software, and has published Climate change and the DECC Global Calculator emphasising the need for further work in this area.