What will a three-degree-warmer world look like? When experiencing stress or damage from various sources, plants use chloroplast-to-nucleus communication to regulate gene expression and help them cope. Now, researchers have found that GUN1 — a gene that integrates numerous chloroplast-to-nucleus retrograde signaling pathways — also plays an important role in how proteins are made in damaged chloroplasts, which provides a new insight into how plants respond to stress.