In addition, the use of products and energy from sustainably managed forests to substitute for non-renewable materials and energy sources contributes to climate change mitigation. There is potential to further develop all these approaches, although, there are tradeoffs between these strategic objectives as well as with other forest management objectives. The benefits for biodiversity can already be seen in the recorded increase of the dead wood component in commercially managed semi-natural forests. In some ECE countries the international commitments on biodiversity, notably the Aichi biodiversity targets, are being implemented, although there is no authoritative progress report yet.