I always thought about cycling to work, but that would mean more than doubling the amount of time commuting and thus complicating the family organization (basically my wife, who is also having a full-time job, would need to take care of everything, while I am polluting less).
So far I haven't found a definite solution to how, in the modern world, work at least 8-10 hours per day, possibly far from home, while having a family, and not polluting.