You know, allergies already have plenty of bad rep - they don't need your slandering them like that.
In Alfred Bester's "The demolished man", natural disasters and weather extremes on Earth have been engineered out of existence. So, there is like this enormous amusement park in space, broken down into segments with various flora, fauna, and climates. People go there when they want to get maximum natural interaction. All you are allowed to take with you are things you can carry, including a personal forcefield generator in case the wildlife decides to get up close and personal. No cars are allowed, helicopters are only for emergencies. If you want fire - you gather your own firewood and rub two sticks together or use flint. If you want fishing - you make your own fishing rod and dig your own worms. And so on. I found it an interesting concept.