The Earth is getting hotter as a result of climate change and high temperatures lead to unusual fluctuations, most notably prolonged, multi-seasonal droughts, which exacerbate the phenomenon of acute food insecurity in various regions around the world, due to their direct effects on crops.
<p>When water supplies are low, tomato roots produce suberin—the molecule that gives wine corks and waxy potato skins their water-repellent qualities—to control water flow.</p>