Question: how to get carbon out of the atmosphere
[{'answer': 'biochar', 'provenance': [{'wikipedia_id': '21072589', 'title': 'Carbon dioxide removal', 'start_paragraph_id': 1, 'start_character': 224, 'end_paragraph_id': 1, 'end_character': 231, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}, {'answer': 'ocean fertilization', 'provenance': [{'wikipedia_id': '21072589', 'title': 'Carbon dioxide removal', 'start_paragraph_id': 1, 'start_character': 233, 'end_paragraph_id': 1, 'end_character': 252, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}, {'answer': 'enhanced weathering', 'provenance': [{'wikipedia_id': '21072589', 'title': 'Carbon dioxide removal', 'start_paragraph_id': 1, 'start_character': 254, 'end_paragraph_id': 1, 'end_character': 273, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}, {'answer': 'direct air capture', 'provenance': [{'wikipedia_id': '21072589', 'title': 'Carbon dioxide removal', 'start_paragraph_id': 1, 'start_character': 279, 'end_paragraph_id': 1, 'end_character': 297, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}, {'answer': 'bio-energy with carbon capture and storage'}, {'provenance': [{'wikipedia_id': '21072589', 'title': 'Carbon dioxide removal', 'start_paragraph_id': 1, 'start_character': 0, 'end_paragraph_id': 1, 'end_character': 1096, 'bleu_score': 0.9026136769578531, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 3038272274939405783}, 'section': 'Section::::Abstract.'}]}]