What country was the greatest source of CO2 emissions in 2004? And what country had replaced them by 2011?

What country was the greatest source of CO2 emissions in 2004? And what country had replaced them by 2011? What other countries will emerge as the major sources of CO2 emissions by 2050? What fossil fuel source is driving this global increase in emissions that pushed us over the 404 PPM of CO2 this year? Why did the Paris Treaty set the goal of limiting global warming to 1.5. degrees Celsius? What organizations stand to lose the most from the deployment of alternative energy systems? What would be the likely outcome of the Trump Administration withdrawal of the United States from the Paris Climate Treaty? How quickly can the incoming Biden Administration reverse this decision? What will happen to the world of 2050, if we follow a “business as usual” scenario in terms of fossil fuel consumption? Why does David Wallace Wells think “it’s time to panic.”