Tom Lathan

The march of the larch: the Treeline is now encroaching on the arctic tundra

Climate change is pushing the boreal forest ever further, causing massive disruption to food chains and indigenous peoples’ ways of life

Swedish Lapland, where the Sami’s traditional way of life is increasingly threatened. [Alamy] 
issue 15 January 2022

Covering 20 per cent of the Earth’s surface, the boreal forest is the largest living system, or ‘biome’, on land. It contains one third of all the planet’s trees and encircles much of the northern hemisphere in a halo of green. The northernmost extent of this forest, called the treeline, marks the point beyond which it is too cold for trees to grow.

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