"This too shall change."
The current government of the United States is planning to try to "lock in" a particular level of one minor greenhouse gas to keep the world from changing. It's not going to work. In fact, the climate itself is showing that placing all our emphasis on one factor of literally dozens is foolish. The sun, rather active for most of the last century, has gone in to a quiet period not seen since 1913 - when there was little in the way of carbon dioxide being dumped into the atmosphere. Temperatures have steadily dropped - with a small delay - along with solar activity. Unless the sun's activity increases significantly, we can expect temperatures four, five, even ten degrees below normal over the next 20 years.
The current government action has nothing to do with science, and everything to do with a monstrous power grab. If Congress succeeds, expect to see huge taxes, prices escalating by unbelievable amounts, and fuel and utility costs increasing in inverse proportion to availability. Also expect to find that wheat won't grow in northern Alberta, that corn takes longer to ripen in Iowa, and a lot of food items won't grow any longer below Memphis. A Dalton Minimum (Google it), which is fast becoming a probability instead of a possibility, will shake up the entire world, far more than "global warming" ever would.