I looked into this a number of years ago and it doesn’t seem like Founders Pledge’s methodology has changed since then. You can read their Cause Area Report for more depth, but the primary metric they rate on is tonnes of CO2-equivalent pollutants averted per year per U.S. dollar (CO2-equivalent uses simple weights to compare between different greenhouse gases, such as methane). They have somewhat strong estimates per charity, such that in 2018, the Clean Air Task Force and Coalition for Rainforest Nations came out ahead—but with the proviso that this extrapolated past performance into the future, which isn’t a given with lobbying organisations.
I agree that GWWC could use more depth here, and at the same time I tend to agree that they’re right to recommend Founders Pledge first.
I looked into this a number of years ago and it doesn’t seem like Founders Pledge’s methodology has changed since then. You can read their Cause Area Report for more depth, but the primary metric they rate on is tonnes of CO2-equivalent pollutants averted per year per U.S. dollar (CO2-equivalent uses simple weights to compare between different greenhouse gases, such as methane). They have somewhat strong estimates per charity, such that in 2018, the Clean Air Task Force and Coalition for Rainforest Nations came out ahead—but with the proviso that this extrapolated past performance into the future, which isn’t a given with lobbying organisations.
I agree that GWWC could use more depth here, and at the same time I tend to agree that they’re right to recommend Founders Pledge first.