Well, we've had a massive increase in annual co2 emissions since 20 years ago. I would posit that the decrease in poverty is a direct result in our burning more energy for short term production.

It's not only that, but I think it's a major factor. I'm only extremely slow internet so I can't look up the table, but I think our annual rate of emissions are 30-50% higher than in 1998. Could be wrong there though.