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The phenomenon is climate change, not simply warming.
And it isn't just climatologists who see the changes. Botanists and foresters can tell you that the boundary between the northern hardwood forest and the boreal forest has been moving slowly northward for the past 20+ years. That's because it's getting too warm for the boreal biome to thrive, so it's being displaced by more heat-loving species like maple, oak, etc.
And it isn't just climatologists who see the changes. Botanists and foresters can tell you that the boundary between the northern hardwood forest and the boreal forest has been moving slowly northward for the past 20+ years. That's because it's getting too warm for the boreal biome to thrive, so it's being displaced by more heat-loving species like maple, oak, etc.