Scientists have discovered geological evidence that the gravitational interaction between Mars and Earth drives a 2.4-million-year cycle of deep-sea circulation and global warming.
The surprising link between Mars and Earth's seas and climate sees deep currents wax and wane, and this connects to periods of increased solar energy and a warmer climate. The research could help reveal how climate change over geological timescales — not the type humanity is currently causing via the emission of greenhouse gases — affects the circulation of the oceans.
