AND HOW ! HOT, DRY ARCTIC WEATHER HA LED TO THE IGNITION OF PEAT-MANTLED TUNDRA IN EASTERN SIBERIA, ALASKA AND CANADA. THIS SIBERIAN BURN MAY RIVAL THAT OF 1915, WHICH SAW THE LARGEST SMOKE EMISSIONS YET RECORDED, MUCH OF IT FROM PEAT BEDS THAT BURNED DOWN TO A DEPTH OF SEVERAL METERS
