We, humanity as a whole, probably don't understand that we are using billions of CO2 generators continuously and resulting consequences.
More smart science means less stupid politics.
i.e. ROI CO2 = (amount of CO2 emissions reduced during the lifetime of a given project) / (amount of CO2 emissions for project execution + amount of CO2 emissions for recycling at end-of-use).
i.e. ROI CO2 = (amount of CO2 emissions reduced during the lifetime of a given project) / (amount of CO2 emissions for project execution + amount of CO2 emissions for recycling at end-of-use).