North American cold-climate forests are already absorbing less carbon, study shows – Phys.org

Trees are one of humans’ biggest allies in the fight against climate change, soaking up around 30% of the carbon we pump into the atmosphere by burning fossil fuel.
And over the past several decades, it has appeared that cold-climate forests at high latitudes have become even more effective carbon sinks as rising temperatures and higher CO2 levels have made them more productive.
But a new study led by University of Michigan researchers gives a clearer picture of what’s happening in different r…

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