Dying forests: New carbon emitters?

Their carbon-absorbing properties have made trees crucial climate allies. But for how long? As extreme climate conditions accelerate their decline, forests are losing their ability to act as carbon sinks by soaking up planet-warming gases. In France, some have even turned into a source of carbon. In this edition of Down to Earth, we meet with scientists as they try to piece together the sequence of factors contributing to the decline of French forests and carbon sequestration.