"A Carbon Budget for Forests of the Conterminous United States," Ecological Applications, (5)2, 1995, pp. 421-436.
Most Americans don't read scientific journals. The closest they get to one might be Scientific American or Popular Mechanics which are perfectly good publications, but, if Americans did read professional journals, what would they know?
They would know the scientists taking care of American forests already know what the capacity for carbon sinks in the USA. They would know their country was way over it's carbon budget.
Now if Speaker Paul "No Clue" Ryan wants to talk about balanced budgets he needs to first deal with balancing the USA Carbon Budget. No other budget for the country is possible until Americans understand and realize the importance of balancing their carbon budget to the perfection outlined by its scientists.