translation.en: Three quarters of that is in the temperate zone, and just one quarter is in the tropics, but this one quarter, one billion hectares, holds most of the biodiversity, and very importantly, 50 percent of the living biomass, the carbon.
translation.zh: 其中四分之三是在温带， 仅仅四分之一在热带。 但就是这四分之一，十亿公顷， 拥有着最丰富的生物多样性， 非常重要的是，这片区域拥有 高达 50% 的生物质能，即“碳”。