Question: where is one place greenhouse gases are produced
[{'answer': "Earth 's atmosphere", 'provenance': [{'wikipedia_id': '21350772', 'title': 'Greenhouse gas', 'start_paragraph_id': 7, 'start_character': 157, 'end_paragraph_id': 7, 'end_character': 179, 'bleu_score': 1.0, 'section': "Section::::Gases in Earth's atmosphere.:Greenhouse gases.\n"}]}, {'provenance': [{'wikipedia_id': '21350772', 'title': 'Greenhouse gas', 'start_paragraph_id': 1, 'start_character': 0, 'end_paragraph_id': 1, 'end_character': 467, 'bleu_score': 0.5505544575158461, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 2278846505810181720}, 'section': 'Section::::Abstract.'}]}]