Citibank: Cost of Doing Nothing About Climate Change is Far Higher Than Cost of Reducing Emissions

  • Citibank estimates that global damages from doing nothing to reduce greenhouse gas (GHG) emissions range from $5 to $44 trillion of net present value (global GDP is currently $80 trillion), noting that these estimates likely undercount the true value of total damages.

  • The study estimates that the cost of investments to reduce GHG emissions range from $2 to $5 trillion of net present value.

  • The study also shows that the return on investment in reducing GHG emissions ranges from between 3% and 10% by 2040.