The European spruce bark beetle is threatening Sweden's forests more than the record wild fires that occurred last year. As summers become hotter and drier, the damage will likely grow.  A worst-case scenario from the Swedish Forest Agency estimates that it could ruin as much as 12.5 million cubic meters of wood this year, costing as much as 6 billion kronor ($625 million). That’s equivalent to more than 15 percent of annual logging. In its baseline scenario, it sees damage on par with last year’s 3 to 4 million cubic meters.   ...