when it comes to food, humanity’s looking down the barrel of a gun. The world’s population will balloon to almost 9.8 billion by 2050, leading to an expected 60 percent increased demand for food. And the devastating effects of climate change aren’t doing any favors for our farming.

But there may be a silver lining, and it involves backpedaling evolution.

Researchers at Cornell University have found a way to resurrect an ancient form of an enzyme called Rubisco that promoted photosynthesis in plants millions of years ago, when Earth was experiencing one of its hottest climates since the last 50 million years. In a study published April 15 in the journal Science Advances, the researchers were able to use modern-day versions of Rubisco to piece together an idea of what the enzyme looked like in ancient times. As a result, scientists may be able to harness its power once again to help ensure our crops of the future can adapt and resist climate change and provide us with all the fresh fruits, vegetables, and grains we need.

Although plants suck in carbon dioxide and produce oxygen, they aren’t exactly able to just make use of carbon dioxide in its current, gaseous form. Rubisco, short for ribulose-1,5-bisphosphate carboxylase/oxygenase and the most abundant enzyme found on Earth, transforms carbon dioxide into a biologically friendly form, which plants use to build their tissues.