* So, what do you get for your trillions? Climatically, nothing. Assume that all the nations of the world fulfill their obligations under the [[Kyoto Protocol]] (they won't!), which reduces global emissions about 5% below 1990 levels. That results in a "savings" of [[global warming]] of 0.07 degrees Celsius by 2050 — an amount too small to measure, as global temperatures vary on their own about twice that much from year-to-year.<ref name=pmtrill/> | * So, what do you get for your trillions? Climatically, nothing. Assume that all the nations of the world fulfill their obligations under the [[Kyoto Protocol]] (they won't!), which reduces global emissions about 5% below 1990 levels. That results in a "savings" of [[global warming]] of 0.07 degrees Celsius by 2050 — an amount too small to measure, as global temperatures vary on their own about twice that much from year-to-year.<ref name=pmtrill/> |