A liberal, scientist friend who fully believes in global warming told me that the damage is done; there’s no turning back and there’s no way to address the doomsday that we have set.
Personally, I think the whatever warming we’re seeing is from all the asphalt we have. It heats up the earth, even in winter.
Your liberal friend is right about one thing, the rise in temperature is almost totally man made. But, its not real and comes from manipulation of temperature records. Some of this manipulation was intentional, some just through faulty methods. That helped to make the case that CO2 levels was the cause, a theory that gets weaker everyday. Temperatures are not rising, yet CO2 continues to go up. The negative impact of CO2 is that the government is shutting down perfectly good power plants at a time when we need reliable, affordable energy to support economic growth.