Canadian Press: As rich countries push away from the table after four decades of environmental degradation, the poor ones are stuck with the bill, says new research attempting to assess the costs and causes of human economic activity. According to a paper published Monday in the U.S.-based Proceedings of the National Academy of Science, low-income nations subsidized the living standards of middle-and high-income nations by more than $3 trillion between 1961 and 2000 – almost all of that caused by …