How does climate relate to population growth in Italy?

Climate change is already having an effect in Italy, as elsewhere. The global effects of an increasing concentration of greenhouse gases in the atmosphere are reflected in the growing number of extreme weather events, such as heat-waves and intense rainfall.

7.03-1.70=5.33 and 6.80+5.09=11.89 and 5.5-3.01=2.49

separation of church and state? not sure what you mean.