{"doi":"10.1029/2004gl021239","title":"Quantifying the effects of CO<sub>2</sub>‐fertilized vegetation on future global climate and carbon dynamics","abstract":"<jats:p>Climate and the global carbon cycle are a tightly coupled system where changes in climate affect exchange of atmospheric CO<jats:sub>2</jats:sub> with the land biosphere and the ocean, and vice‐versa. In particular, the response of the land biosphere to the ongoing increase in atmospheric CO<jats:sub>2</jats:sub> is not well understood. To evaluate the approximate upper and lower limits of land carbon uptake, we perform simulations using a comprehensive climate‐carbon model. In one case the land biosphere is vigorously fertilized by added CO<jats:sub>2</jats:sub> and sequesters carbon throughout the 21st century. In a second case, CO<jats:sub>2</jats:sub> fertilization saturates in year 2000; here the land becomes an additional source of CO<jats:sub>2</jats:sub> by 2050. The predicted atmospheric CO<jats:sub>2</jats:sub> concentration at year 2100 differs by 40% between the two cases. We show that current uncertainties preclude determination of whether the land biosphere will amplify or damp atmospheric CO<jats:sub>2</jats:sub> increases by the end of the century.</jats:p>","journal":"Geophysical Research Letters","year":2004,"id":24888,"datarank":4.049476204487616,"base_score":4.454347296253507,"endowment":4.454347296253507,"self_citation_contribution":0.6681520944380261,"citation_network_contribution":3.3813241100495897,"self_endowment_contribution":0.6681520944380261,"citer_contribution":3.3813241100495897,"corpus_percentile":null,"corpus_rank":null,"citation_count":85,"citer_count":70,"citers_with_citation_signal":63,"citers_with_endowment":63,"datacite_reuse_total":0,"is_dataset":false,"is_dataset_confidence":null,"is_data_producer":false,"deposit_databanks":null,"is_oa":false,"file_count":0,"downloads":0,"has_version_chain":false,"published_date":null,"fair_score":null,"fair_percentile":null,"algorithm_id":"datarank_citation_only_1hop_v6","ranking_scope":"data_only","authors":[{"id":147997,"name":"Bala Govindasamy","orcid":null,"position":1,"is_corresponding":false},{"id":147998,"name":"Art Mirin","orcid":null,"position":2,"is_corresponding":false},{"id":147999,"name":"Ken Caldeira","orcid":null,"position":3,"is_corresponding":false},{"id":148000,"name":"Christine Delire","orcid":null,"position":4,"is_corresponding":false},{"id":148001,"name":"Jose Milovich","orcid":null,"position":5,"is_corresponding":false},{"id":148002,"name":"Mike Wickett","orcid":null,"position":6,"is_corresponding":false},{"id":148003,"name":"David Erickson","orcid":null,"position":7,"is_corresponding":false},{"id":147996,"name":"Starley L. 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