Are you for real? Yes, freeze happens every year but the buds were on the trees earlydue to a abnormally warm winter. If the winter was not abnormally warm the buds would not have been on the trees and when the normal freeze comes they would not have died. Budding happens after the normal freeze each year
Have you never heard of a "late frost"? We get them into June here, most years.
Sometimes the trees bloom early and their yield is affected by subsequent frosts. Perfectly natural and hardly a sign that the Climate is going awry in any sort of trend. In Bath County, VA there is a little valley known as "Little Egypt" among the locals. In the 1800s, a late frost wiped out the crops in the Back Creek Valley, and those in that little valley fed the larger population of Back Creek Valley, resulting in the name (after Pharoah's grain stores feeding in times of famine).
That's just one example, and hardly an isolated incident. These events are only new causes for panic for those who have no historical perspective and think these sort of events are unique and some sort of portent of evil. If it's early enough, and you can, you replant. Sh*t happens.