{"id":"W7116916118","doi":"10.1038/s41565-025-02098-6","title":"Why plastic recycling stalls","year":2025,"lang":"en","type":"article","venue":"Nature Nanotechnology","topic":"Microplastics and Plastic Pollution","field":"Environmental Science","cited_by":0,"is_retracted":false,"has_abstract":false,"ca_institutions":"World Federation of Science Journalists","funders":"","keywords":"Field (mathematics); Scaling; Scale (ratio); Emerging technologies","routes":{"ca_aff":true,"ca_fund":false,"ca_venue":false,"about_ca":false,"invisible_to_affiliation_only":false},"retraction":null,"screen":null,"direct_labels":[],"prediction":{"model_version":"metacan-v3-hybrid-931329e0061c","candidate_categories":[],"consensus_categories":[],"category_scores_codex":[0.004238427,0.0003998853,0.0004228635,0.0008619081,0.004115114,0.007249838,0.001323398,0.007739298,0.04773645],"category_scores_gemma":[0.01487468,0.0004767628,0.0006013681,0.0007259225,0.007098848,0.007667899,0.003379203,0.005999579,0.01523393],"about_ca_system_candidate":false,"about_ca_system_consensus":false,"about_ca_system_score_codex":0.004645439,"about_ca_system_score_gemma":0.005626049,"about_ca_topic_candidate":false,"about_ca_topic_consensus":false,"about_ca_topic_score_codex":0.01098176,"about_ca_topic_score_gemma":0.0142935,"domain_scores_codex":[0.9956899,0.0006911698,0.0001121402,0.0006867662,0.001295152,0.001524799],"domain_scores_gemma":[0.9908633,0.002793461,0.001030797,0.0008229457,0.002708791,0.001780616],"domain_codex":null,"domain_gemma":null,"domain_candidate":null,"domain_consensus":null,"study_design_codex":"not_applicable","study_design_gemma":"not_applicable","study_design_scores_codex":[0.0003473725,0.0001662107,0.01137021,0.0005630002,0.00008284787,0.001285127,0.004108204,0.0003877386,0.003350421,0.1378119,0.6898745,0.1506526],"study_design_scores_gemma":[0.00002661188,0.00007865515,0.005859786,0.000494585,0.00003226613,0.0005942303,0.009981877,0.0002583486,0.002467053,0.05963987,0.9204968,0.00006991252],"study_design_candidate":"not_applicable","study_design_consensus":"not_applicable","genre_codex":"commentary","genre_gemma":"commentary","genre_scores_codex":[0.06477222,0.01559159,0.002084528,0.6793788,0.00801751,0.00003670828,0.0002678766,0.001021076,0.2288297],"genre_scores_gemma":[0.5930449,0.01020612,0.001373535,0.2194015,0.003166801,0.00005132487,0.0002590503,0.0009691519,0.1715275],"genre_candidate":"commentary","genre_consensus":"commentary","teacher_disagreement_score":0.04773645,"threshold_uncertainty_score":0.1596943,"prediction_status":"machine_predicted_unvalidated"},"machine_scores":{"provisional":true,"baseline":true,"maturity_gate_passed":false,"score_opus":0.002823352700614518,"score_gpt":0.213243181497934,"score_spread":0.2104198287973195,"validation_status":"score_only:v0-immature-baseline","note":"Baseline scores from an immature model (maturity gate not passed). Scores rank; they never assert a category."}}