How does a rapidly warming Arctic affect mid-latitude climate now and future years? Literature on this subject shows contrasting results, in part due to differences in protocols when modeling the climate response to Arctic sea-ice loss. Recommended by PAMIP, a common practice to smooth out noise of atmospheric variability (a major source of uncertainty in response to sea-ice loss) is to run ensembles (>100 ensemble members) of simulations. However, a recent study by Peings et al. shows that having 100 ensemble members in fact does not guarantee a robust assessment of the response.