Break-up of continents led to CO2 rise, heat release: Study
A Germany-based study has shown that break-up of continents, also called rifting, contributed to higher CO2 concentrations in the atmosphere. Scientists note that only 0.001% of planet's CO2 is found in the biosphere while remaining 99.999% is bound deep in Earth. Scientists correlated the rifting to CO2 levels, which determines whether the Earth is in greenhouse or ice age state.