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@prefix gcis: <> .
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@prefix biro: <> .

   dcterms:identifier "key-message-2-3";
   gcis:findingNumber "2.3"^^xsd:string;
   gcis:findingStatement "Approximately 43% of the continent’s total fossil fuel emissions from 2004 to 2013 were offset by natural carbon sinks on North American land and the adjacent coastal ocean (<em>medium confidence</em>)."^^xsd:string;
   gcis:isFindingOf <>;
   gcis:isFindingOf <>;

## Properties of the finding:
   gcis:descriptionOfEvidenceBase "Key Finding 3 is supported by fossil fuel emissions data (Boden et al., 2015), forest inventories in the United States (Woodall et al., 2015; see <a href=''>Ch. 9: Forests</a>) and Canada (Stinson et al., 2011), atmospheric inverse modeling ensembles (see <a href=''>Ch. 8: Observations of Atmospheric Carbon Dioxide and Methane</a>), terrestrial biosphere model ensembles (Huntzinger et al., 2012), and synthesis studies (Hayes et al., 2012; King et al., 2012, 2015)."^^xsd:string;
   gcis:assessmentOfConfidenceBasedOnEvidence "At least some portion of anthropogenic carbon emissions to the atmosphere is very likely offset by vegetation uptake and storage in North American land ecosystems. There is medium confidence in the “best estimate” of 43% as the proportion of total fossil fuel emissions taken up by North American land and coastal ocean areas."^^xsd:string;
   gcis:newInformationAndRemainingUncertainties "The land sink is uncertain due to a lack of measurement precision in inventories, along with gaps in spatial coverage and uncertainty in specific components such as the soil carbon pool. The overall land sink is inferred from reconciling a number of estimates from different components, themselves often highly uncertain. In particular, the component with the largest estimate of the inferred ecosystem flux—the lateral transfer to the aquatic system—is also one of the least certain (see Table 2.2)."^^xsd:string;

   a gcis:Finding .

## This finding cites the following entities:

   prov:wasDerivedFrom <>.