{'green house effect': [4, 0, 0, 3], 'gases': [0, 0, 5, 12], 'carbon dioxide': [2, 0, 5, 6], 'ozone': [3, 0, 3, 5], 'carbon monoxide': [3, 0, 1, 1], 'methane': [0, 0, 0, 5], 'carbon tetrafluoride': [0, 0, 0, 1], 'ammonia': [0, 1, 0, 2], 'sulphur dioxide': [0, 0, 0, 1], 'nitrous oxide': [2, 0, 3, 8]}