In 2010, GLOBE Legislators began to count the number of climate laws passed, often by GLOBE members themselves, around the world. This became an annual study called the GLOBE Climate Legislation Study, produced in partnership with the Grantham Research Institute on Climate Change and the Environment at the London School of Economics.  

The 2015 Global Climate Legislation Study, prepared ahead of the Paris Climate Summit, COP21, was a landmark report that reflected the work that legislators had done around the world to build an architecture of legal response to the climate challenge. It built on earlier editions and captured the work of legislators to create legal frameworks that could trigger investments that can lower emissions and drive down costs. The study allowed cross-country comparison so that governments can be held to account for their response to climate risks. The report recognised the importance of 2015 and the need to build momentum ahead of the UNFCCC climate negotiations in Paris in December, when a legally- binding global agreement was to be agreed.