Earth's plant life may last 1.8 billion more years

Scientists estimate Earth's plant life may survive for about 1.8 billion more years before conditions become too harsh.

The Sun's increasing brightness will gradually raise temperatures, shrink oceans, and deplete atmospheric carbon dioxide, hindering photosynthesis.

Researchers from the University of Colorado Boulder and Blue Marble Space used a three-dimensional climate model to simulate Earth's far future.

Temperatures will rise, oceans will shrink, and carbon dioxide loss will prevent plants from carrying out photosynthesis.