Biological production has dramatically affected the evolution of the atmosphere and oceans. All Earth System Models Earth's core Earth-Moon formation Isotopes Lake Cadagno Mass extinctions Modern analogue environments Molybdenum Novel Methods Oxygen Plants Research The impact of land plants on Earth’s climate and oxygenation state Isotopes, Oxygen, Plants, Research Earth’s core formation Earth's core, Earth-Moon formation, Isotopes The Cambrian explosion of animal life Oxygen, Research Tracking ancient ocean chemistry in the field Molybdenum, Novel Methods, Oxygen, Research What regulates O2 on Earth? Earth System Models, Isotopes, Oxygen, Research Ancient ocean analogues Lake Cadagno, Modern analogue environments, Molybdenum, Oxygen, Research Laser based carbon spectroscopy Isotopes, Novel Methods, Research Molybdenum reduction in nature Isotopes, Oxygen, Research Mass extinction by sulfide suffocation Mass extinctions, Oxygen, Research Oxygenation of the Earth’s oceans Isotopes, Oxygen, Plants, Research Loading