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 . Zarin : We have never been able to measure how much and where trees are disappearing . Google : A new online map shows exactly where forests are vanishing and how fast . People now should be held accountable , he says , for ` ` zero deforestation '' pledges .
Daniel Zarin : Loss of native tropical forests accounts for 10 % of carbon emissions . Zarin : We have never been able to measure how much and where trees are disappearing . Google : A new online map shows exactly where forests are vanishing and how fast . People now should be held accountable , he says , for ` ` zero deforestation '' pledges .