Warmer temperatures and increased carbon dioxide will boost arsenic levels in rice.
Rice, the world's most consumed grain, will become increasingly toxic as the atmosphere heats and as carbon dioxide emissions rise, potentially putting billions of people at risk of cancers and other diseases, according to new research published Wednesday in The Lancet. Eaten every day by billions of people and grown across the globe, rice is arguably the planet's most important staple crop, with half the world's population relying on it for…