Only around 15% of the US population live in fully rural counties, which seem like the sort of place you describe. Perhaps you could make up for the damage you do with a car or truck by collecting your own electricity with all that land, or something. Luckily, there is hardly anyone else around you to enjoy the pollution your gas and/or diesel vehicles create.
(I live in a remote and semi-rural area, too, and I bicycle everywhere.)
That, and the obligatory: move out of the sticks.
Or go electric - you'll have to stop using mostly coal for your electricity for it to make any sense (which is the dominant source, particularly in midwestern and western rural areas - where a lot of that low population density land is). 50 miles to a city isn't that big a deal for an electric car.