global warming

Earth 2100

In 2100 my son will be the same age my father is now. When my father was born the world was emitting just under a billion tonnes of carbon per year. When my son was born we were emitting almost 9 billion tonnes a year and global CO2 levels had increased by about 30%. Questions: How old is my son? How old is my father? What will the world be like in 2100?