Daniel Zarin : Loss of native tropical forests accounts for 10 % of carbon emissions . When we say that knowledge is power , we mean that people with access to knowledge have power and those without it are powerless . Comment: We have never been able to track how much and where trees are disappearing . Zarian : A new online interactive shows exactly where forests are vanishing and how fast . Countries now can be held accountable , he says , for `` zero deforestation '' pledges .
Daniel Zarin : Loss of native tropical forests accounts for 10 % of carbon emissions . Comment: We have never been able to track how much and where trees are disappearing . Zarian : A new online interactive shows exactly where forests are vanishing and how fast . Countries now can be held accountable , he says , for `` zero deforestation '' pledges .