We have more and more scientific evidence across so much research that the boreal forest in Canada, or the temperate mixed forest in Germany and Russia are starting to lose their carbon uptake capacity.

大量的研究表明， 越来越多的科学证据表明，加拿大的北方针叶林、德国和俄罗斯的温带混交林正开始失去其碳吸收能力。