After a week in Cambodia’s sweltering tropical heat, Seoul’s winter weather hit me like a slap in the face. I had bundled in layers from head to toe and braced myself for freezing temperatures, but nothing quite prepared me for the rush of cold air that met me as I stepped off the plane at the Incheon International Airport. Temperatures hovered around ten degrees Farenheit and the fierce wind sliced at my bones. It was a stark reminder that we were no longer in the tropics. And that winter in…