Posted byKelly Kizer WhittinEARTH|March 7, 2021

A billion years from now, as the sun heats up, the warmer atmosphere will break down carbon dioxide, killing off plant life, which in turn will shut off Earth’s source of oxygen.Sharing is caring!

The oxygen currently in Earth’s atmosphere will be gone in a billion years, say scientists. This image of Earth’s atmosphere was taken from the International Space Station on February 26, 2021. Image viaNASA.https://8505ac7d1ccf4966634f1f008ed6ceef.safeframe.googlesyndication.com/safeframe/1-0-37/html/container.html

Take a deep breath. The air expanding your chest is mostly nitrogen and oxygen, the chief components of our atmosphere. Oxygen exists in our atmosphere thanks to the exhalation of plants, through the process ofphotosynthesis. A study released in March 2021 shows that – a billion years from now, as the sun heats up – plants will die off, taking with them the oxygen in our atmosphere that…