[hugh3]

Even if you where to remove the greenhouse gas problem it would be nowhere close to habitable.

Per unit surface area, how much less sunlight do you get at Earth's poles than at Earth's equator? That's too hard for me to figure out off the top of my head (taking the seasons into account), but I'm pretty sure it's at least a factor of two. So I think a planet with an Earthlike atmosphere in a Venusian orbit would be habitable in the polar regions.

[Retric]

The summer temperature at earth's north pole is for June, July and August is 0°C or 273K. Assuming pure radiative cooling, twice the incoming sunlight (2 * 273K^4)^1/4 = 50.85 degrees Celsius or 123.53 degrees Fahrenheit for three months at a time. Which is at the outer edge of habitable.

However, the atmospheric pressure at the planet's surface is 92 times that of the Earth. So the difference in temperature in the summer is far less than the earth because a lot more energy is transferred to the poles. If you where to somehow remove that atmosphere not just change it's composition the poles may just barely become habitable.

Also wind speed is temperature dependent (Wind being a heat engine) so even with earths atmosphere a lot more energy would make it to the poles in summer.