UN has proposed this a few times
This idiotic idea is not new. The UN has suggested something be done on an international scale a few times. It is nothing but grasping politicians trying to find just one more way to fleece the people out of their money. And it would start VERY low price to start, but year by year the rates would go up.
Senate - get off your butts and actually create a budget that has spending cuts 3x the amount of tax increases like you promised.