Emissions rise as a function of demand, mainly from east Asia, particularly China (holding demand constant, emissions would otherwise lower, since combustion technology grows more efficient over time). The homegrown demand rises because we are padding our numbers with immigration to boost GDP (enriching the wealthy, primarily), and newcomers adopt the same carbon footprint as the rest of us, through consumption. They want houses, vehicles, electricity, gadgets, delicious and convenient food too.
The argument has been made that it's inhumane to demand that developing countries (e.g. in Africa, or BRIC) opt to lower their fossil fuel consumption, restraining themselves from improving their quality of life over time. I agree. We benefited, so should they. If it were possible for them to catch up purely on green tech, they would.
Only a fraction of fossil fuel use is actually for generating electricity. The other uses are currently non-abatable, until technology improves. Other uses include blast furnaces for cement and coke, steel-making, creating ammonia, creating plastics. On the electricity front, things are still a mess.