{"note": "Volcanic stratospheric sulfur injection, in teragrams, from bipolar ice cores. Sigl & Toohey 2024, HolVol v1.1, PANGAEA 10.1594/PANGAEA.971971, CC-BY-4.0. A GLOBAL measurement: the cores constrain the hemisphere, not the spot, so `lat` is an estimate and there is no longitude, and a row never resolves to a polity. A row carrying `entity` IS that atlas eruption's forcing, not a second eruption in the same year.", "rows": [{"year": -2924, "vssi": 4.45, "lat": 5.0, "where": "N/A", "source": "eVolv2k / HolVol v1.1 (Sigl & Toohey 2024)", "place": {"by": "global", "polity": null, "name": null}, "vssi_sd": 1.37}, {"year": -2919, "vssi": 5.72, "lat": 5.0, "where": "N/A", "source": "eVolv2k / HolVol v1.1 (Sigl & Toohey 2024)", "place": {"by": "global", "polity": null, "name": null}, "vssi_sd": 1.36}, {"year": -2914, "vssi": 55.06, "lat": 5.0, "where": "N/A", "source": "eVolv2k / HolVol v1.1 (Sigl & Toohey 2024)", "place": {"by": "global", "polity": null, "name": null}, "vssi_sd": 12.67}, {"year": -2874, "vssi": 5.18, "lat": 48.0, "where": "N/A", "source": "eVolv2k / HolVol v1.1 (Sigl & Toohey 2024)", "place": {"by": "global", "polity": null, "name": null}, "vssi_sd": 1.9}, {"year": -2858, "vssi": 5.83, "lat": 48.0, "where": "N/A", "source": "eVolv2k / HolVol v1.1 (Sigl & Toohey 2024)", "place": {"by": "global", "polity": null, "name": null}, "vssi_sd": 2.14}, {"year": -2833, "vssi": 4.84, "lat": 5.0, "where": "N/A", "source": "eVolv2k / HolVol v1.1 (Sigl & Toohey 2024)", "place": {"by": "global", "polity": null, "name": null}, "vssi_sd": 1.55}, {"year": -2767, "vssi": 7.05, "lat": 48.0, "where": "N/A", "source": "eVolv2k / HolVol v1.1 (Sigl & Toohey 2024)", "place": {"by": "global", "polity": null, "name": null}, "vssi_sd": 2.58}, {"year": -2745, "vssi": 2.6, "lat": 48.0, "where": "N/A", "source": "eVolv2k / HolVol v1.1 (Sigl & Toohey 2024)", "place": {"by": "global", "polity": null, "name": null}, "vssi_sd": 0.95}, {"year": -2736, "vssi": 4.41, "lat": 48.0, "where": "N/A", "source": "eVolv2k / HolVol v1.1 (Sigl & Toohey 2024)", "place": {"by": "global", "polity": null, "name": null}, "vssi_sd": 1.62}, {"year": -2723, "vssi": 8.68, "lat": 5.0, "where": "N/A", "source": "eVolv2k / HolVol v1.1 (Sigl & Toohey 2024)", "place": {"by": "global", "polity": null, "name": null}, "vssi_sd": 3.05}, {"year": -2719, "vssi": 2.22, "lat": -37.0, "where": "N/A", "source": "eVolv2k / HolVol v1.1 (Sigl & Toohey 2024)", "place": {"by": "global", "polity": null, "name": null}, "vssi_sd": 0.49}, {"year": -2695, "vssi": 2.05, "lat": -37.0, "where": "N/A", "source": "eVolv2k / HolVol v1.1 (Sigl & Toohey 2024)", "place": {"by": "global", "polity": null, "name": null}, "vssi_sd": 0.45}, {"year": -2686, "vssi": 12.13, "lat": 5.0, "where": "N/A", "source": "eVolv2k / HolVol v1.1 (Sigl & Toohey 2024)", "place": {"by": "global", "polity": null, "name": null}, "vssi_sd": 2.83}, {"year": -2650, "vssi": 2.25, "lat": 48.0, "where": "N/A", "source": "eVolv2k / HolVol v1.1 (Sigl & Toohey 2024)", "place": {"by": "global", "polity": null, "name": null}, "vssi_sd": 0.83}, {"year": -2636, "vssi": 4.35, "lat": 48.0, "where": "N/A", "source": "eVolv2k / HolVol v1.1 (Sigl & Toohey 2024)", "place": {"by": "global", "polity": null, "name": null}, "vssi_sd": 1.6}, {"year": -2613, "vssi": 2.78, "lat": 48.0, 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{"year": -2253, "vssi": 4.55, "lat": 48.0, "where": "N/A", "source": "eVolv2k / HolVol v1.1 (Sigl & Toohey 2024)", "place": {"by": "global", "polity": null, "name": null}, "vssi_sd": 1.67}, {"year": -2243, "vssi": 6.16, "lat": 48.0, "where": "N/A", "source": "eVolv2k / HolVol v1.1 (Sigl & Toohey 2024)", "place": {"by": "global", "polity": null, "name": null}, "vssi_sd": 2.26}, {"year": -2202, "vssi": 2.0, "lat": 48.0, "where": "N/A", "source": "eVolv2k / HolVol v1.1 (Sigl & Toohey 2024)", "place": {"by": "global", "polity": null, "name": null}, "vssi_sd": 0.73}, {"year": -2197, "vssi": 2.71, "lat": 5.0, "where": "N/A", "source": "eVolv2k / HolVol v1.1 (Sigl & Toohey 2024)", "place": {"by": "global", "polity": null, "name": null}, "vssi_sd": 0.73}, {"year": -2185, "vssi": 2.85, "lat": 48.0, "where": "N/A", "source": "eVolv2k / HolVol v1.1 (Sigl & Toohey 2024)", "place": {"by": "global", "polity": null, "name": null}, "vssi_sd": 1.04}, {"year": -2149, "vssi": 11.07, "lat": 5.0, "where": 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