Extreme weather and pollution have increased the salt content in some soil, making growing conditions harsh for salt-sensitive crops like rice. Now, researchers reporting in ACS Nano detail a possible solution that doesn't require genetic modification to make rice plants thrive in these conditions. In lab experiments, they determined that coating rice seedlings with magnesium-doped carbon dots—derived from durian peels—increased the seedlings' antioxidant activity and photosynthesis, reducing the stress caused by salty soil.