The COP29 climate talks in Azerbaijan aim to agree an annual finance target of $1 trillion or more a year to help poorer countries respond to global warming. Some see new taxes as one way to get there. The Global Solidarity Levies Task Force (GSLT), led by France, Barbados and Kenya, is exploring the issue. Below are excerpts from its latest report on the options being discussed -- as it pertains to shipping and fossil fuels -- & estimates about how much could be raised