This is a real cheap shot. A sitting US Senate is invoking fear for Santa's safety to shill for global warming.
Dear Santa Claus,
I am writing out of concern, because you may have to move from the North Pole due to the dramatic melting of Arctic sea ice. The Navy's chief oceanographer says that by the summer of 2020 the North Pole may not have summer ice and other scientists project that an ice-free Arctic is possible as soon as 2012!...
I am worried about your safety and your ability to deliver billions of Christmas gifts if the ice cap on the North Pole no longer stays frozen all year. What will happen to your house, your workshop, the elves' houses and your reindeer barns?