Nearly all the population in the UK lives below 500m. In the US, there are major cities that are at 1500m elevation (like Denver CO). Water in Denver boils at

Nearly all the population in the UK lives below 500m. In the US, there are major cities that are at 1500m elevation (like Denver CO). Water in Denver boils at ~94C. For most of the UK it's more like 98->100C